Canada Post
Carrier solution

Recover what Canada Post owes you. Automatically.

Buster Fetcher® checks every Canada Post invoice for billing errors, like a billed weight far above what you declared, and every guaranteed parcel for late delivery. We claim late refunds for you. Billing errors come to you flagged, with the proof and the amount, ready for you to claim.

Buster Fetcher dashboard showing Canada Post monitoring view

What Canada Post owes you

Most shippers leave money with the carrier without realizing it. Here's where Buster Fetcher gets it back.

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Invoice billing errors

Reweighs, address corrections, surcharges that shouldn't apply, fuel miscalculations, Saturday fees on weekdays, and more. We audit every line.

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Late delivery refunds

Canada Post guarantees Xpresspost, Priority, and Expedited Parcel. When a parcel misses the promise, the shipping cost is yours to get back. We catch every eligible parcel.

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Fees to check

A billed weight far above what you declared. A signature or COD fee you may not have asked for. We show you each one, and you confirm.

Late delivery refunds

When Canada Post is late, you're owed a refund.

Xpresspost, Priority, and Expedited Parcel come with a delivery guarantee. About 1 in 10 arrives late, and every late parcel is yours to claim. Most shippers never file because tracking parcels by hand isn't realistic.

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Every Xpresspost, Priority, and Expedited Parcel monitored
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About 10% of guaranteed parcels arrive late and qualify for a refund
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30-business-day claim window, filed automatically
See what you can recover →
Refund queue dashboard filtered to Canada Post
Invoice audit screen showing a billed weight flagged to verify
Shipping Monitor for Canada Post

Your invoices are not what they should be.

Carrier invoices are full of errors that are almost impossible to catch by hand. Billed heavier than you declared. A Saturday fee on a parcel delivered on a weekday. A fuel rate that doesn't match what Canada Post published that week. Buster Fetcher reads every line and flags what doesn't add up.

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Weight and dimension overcharges, wrong surcharges, address-correction errors, fuel miscalculations, and more
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90-day claim window for billing errors
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Tens of thousands of dollars recovered for some clients
See your invoice audit →

Which Canada Post services qualify for refunds

Refunds apply to guaranteed services only. Here is where Canada Post commits to a delivery date.

Service
Delivery promise
Claim window
Xpresspost™
Next business day in-province, 2 business days nationally
30 business days from the promised delivery date
Priority™
Next business day, by end of day
30 business days from the promised delivery date
Expedited Parcel™
1-2 business days local, 1-4 regional, 2-8 nationally
30 business days from the promised delivery date
Regular Parcel™
Estimated delivery dates only — not guaranteed
Not eligible

Xpresspost, Priority, and Expedited Parcel all carry a money-back guarantee from Canada Post. Buster Fetcher tracks every parcel on every service so you always know what you're owed.

Canada Post updates its services, delivery promises, and guarantee policies from time to time. For the most current information, check the Canada Post website or contact us and we'll confirm the latest. Canada Post, Priority, Xpresspost, Expedited Parcel and Regular Parcel are trademarks of Canada Post Corporation.

20+ Canada Post billing errors we catch

Buster Fetcher audits Canada Post invoices line by line across more than 20 types of errors and surcharges. Here are the most common ones, by category.

Weight

Flagged

Reweigh overcharge

Billed weight

3.5 kg

Real weight

2.0 kg

You paid for weight your parcel didn’t have.

Surcharges

Flagged

Address correction fee

Address correction

$7.00

Original address

Valid

The address was right. The fee shouldn’t be there.

Weight

Flagged

Dimensional weight math

Billed (÷ 5000)

4.8 kg

Regular Parcel (÷ 6000)

4.0 kg

Wrong formula for the service. Higher bill.

Service

Flagged

Saturday fee on a weekday

Saturday delivery

Charged

Delivered on

Tuesday

Billed for Saturday. It arrived on a weekday.

Surcharges

Flagged

Fuel surcharge mismatch

Rate on invoice

21.50%

Published rate

19.25%

Canada Post posts the rate every Monday. Yours didn’t match.

Weight

Flagged

Oversize on a normal parcel

Oversize surcharge

Charged

Parcel size

Under the limit

Charged as oversize when it wasn’t.

Service

Flagged

Signature you don't use

Signature option

Charged

Used on your account?

No

You don't use signature. You paid for it anyway.

Billing

Flagged

Duplicate billing

Invoice of Mar 10

Parcel #4471

Invoice of Mar 3

Parcel #4471

Same parcel, billed on two invoices.

Surcharges

Flagged

Peak rate after peak season

Oversize, peak rate

$400

Regular rate

$300

Peak pricing, billed after the peak window closed.

Service

Flagged

COD fee with no COD

Collect on delivery

$7.25

Requested?

No

You never asked for collect on delivery.

Examples are illustrative.

Reweigh overcharges
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Canada Post measured your parcel as heavier than what you declared and billed you the difference. Sometimes the reweigh is wrong.

Dimensional weight errors (Priority / Xpresspost / Expedited)
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Canada Post uses a 5000 cm³/kg divisor for these services. If the math doesn't match, you've been overcharged.

Dimensional weight errors (Regular Parcel)
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Regular Parcel uses a 6000 cm³/kg divisor. Mixing it up with Priority's formula leads to overcharges.

Oversize misclassification
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Canada Post charges Oversize when a parcel passes set dimension thresholds. Sometimes the classification gets applied to parcels that don't qualify.

Residential surcharge on commercial addresses
Coming soon
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A residential delivery fee billed on an address that should have been classified commercial.

Address correction fees
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Canada Post bills around $7.00 to 'correct' an address. If the original address was actually valid, the fee is recoverable.

Fuel surcharge miscalculations
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Canada Post publishes a fuel rate every Monday. When the rate billed on your invoice doesn't match the published rate, you've been overcharged.

Tube fees on a parcel that isn't a tube
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Canada Post bills $2.00 for tube-shaped parcels. Billed on a parcel that isn't a tube, it's recoverable.

Peak season surcharge math
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Canada Post raises existing surcharges (like Oversize $300 → $400) during peak. When the peak-priced surcharge gets applied outside the peak window, it's an overcharge.

COD fee on a parcel that didn't use COD
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Canada Post charges $7.25 for collect-on-delivery. Billed when you didn't request the service, it's recoverable.

Proof-of-age fees billed above the published rate
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A Proof of Age fee billed higher than Canada Post's published rate.

A signature billed when you don't use it
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A Signature Required fee billed when you've told us you don't use signature.

Saturday delivery billed on a weekday
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A Saturday surcharge billed on a parcel actually delivered on a weekday.

Contract rate drift
Coming soon
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Your contracted rate quietly creeping up over time without notice. Catching it early gives you leverage to push back.

Duplicate billing
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The same parcel billed more than once across invoices or months.

Currency / conversion errors
Coming soon
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Currency conversion or rate-card mismatches that lead to incorrect totals on cross-border shipments.

Shipments from unauthorized postal codes
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Parcels manifested from a postal code not registered on your account. Usually a sign of an error or unauthorized usage.

Service used outside your contracted scope
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A service tier or destination that doesn't match your account agreement.

Account anomalies
Coming soon
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Patterns in your account activity that don't fit your normal shipping profile. Worth a second look.

How it works

  1. 01

    Connect

    We connect securely to your Canada Post account. Our team guides you through setup.

  2. 02

    Monitor

    We watch every parcel and every invoice line, 24/7. Nothing gets missed.

  3. 03

    Collect

    We file late-delivery claims for you. Billing errors come to you with the proof and the amount, ready for you to claim. Refunds and credits land back in your account.

Why shippers choose Buster Fetcher for Canada Post

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Built in Canada, made for North America

We know Canada Post's services, surcharges, and quirks because we ship from here too. Bilingual support in English and French.

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Refunds and audits in one place

Most tools do refunds or invoice audits. We do both, and they share the same data so nothing slips through.

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No carrier switch

Keep the Canada Post account you already have. Nothing changes in how you ship.

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We do the legwork

We spot every late parcel on a guaranteed service and file the claim for you. Billing errors come to you flagged, with the proof and the amount, ready for you to claim.

Common questions about Canada Post and Buster Fetcher

How does Buster Fetcher connect to my Canada Post account?
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We connect securely to your Canada Post account, and our team guides you through setup.

How long before I see my first Canada Post refund?
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Refund timing depends on Canada Post's processing window, but we start filing claims as soon as we detect eligible parcels. You'll usually see the first ones in the first invoice cycle after you connect.

Which Canada Post services qualify for late delivery refunds?
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Xpresspost™, Priority™, and Expedited Parcel™ are the three services with a money-back guarantee. Regular Parcel™ has estimated delivery dates only and doesn't qualify.

What's the deadline to file a Canada Post refund claim?
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You have 30 business days from the promised delivery date for late delivery refunds, and 90 days for billing errors. In peak season, a parcel must be at least 2 business days late to qualify. We file late claims automatically, and flag billing errors early so you have time to claim them.

Will Canada Post know I'm using Buster Fetcher? Will it affect my account or my contract?
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No. We work within Canada Post's normal claim process, the same one available to any account holder. Your relationship with Canada Post stays exactly as it was.

Can Buster Fetcher audit invoices I've already received?
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Yes, within the carrier's claim windows. We can usually look back across recent invoices for billing errors. The further back you go, the more likely some claims have already passed their deadline.

Do I need to switch carriers? Is there a contract?
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You don't switch carriers. You keep your Canada Post account. Late delivery refunds are month to month, and you can cancel anytime. Shipping Monitor is a one-year contract, paid for the year up front or monthly. It runs for the full year.

Which Canada Post billing errors does Buster Fetcher catch?
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More than 20 types, from reweigh overcharges and address correction fees to fuel surcharge mismatches and duplicate billing. The most common ones are listed on this page.

See what Canada Post owes you

Free Canada Post diagnosis. No account changes. No commitment.

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