Royal Mail may have overcharged you. We get it back.
Clawback audits your Royal Mail business (OBA) invoices for billing errors, files the claims, and recovers your refunds. You keep 70%. If we recover nothing, you pay nothing.
Royal Mail invoices are harder to check than they should be — so errors often go unnoticed.
If you ship through a Royal Mail Online Business Account (OBA), your invoices run to hundreds of lines: weight bands, format bands, surcharges, fuel adjustments, VAT. Mistakes hide in that detail — a parcel billed a band too high, a Large Letter charged as a parcel, a guaranteed delivery that arrived late and was never refunded, an "unreadable barcode" surcharge you can't verify. Individually they look like pennies. Across a month of volume, they add up quietly — and they keep recurring until someone catches them.
Royal Mail's fuel & energy surcharge on contract parcel services reached 16% in May 2026.
A relatively new "unreadable barcode" charge per item has become a widely-disputed cost for senders.
A group claim alleging large-scale bulk-mail overcharging is currently before the courts — a sign these billing disputes are far from rare. (The claim is an allegation and has not been decided.)
Three steps. You do almost nothing.
We audit your invoice — free
Send us one recent OBA invoice. We check it for the billing errors that most often hit senders like you, and tell you straight what's recoverable. If there's nothing there, we say so.
We file and chase the claims
We prepare the claims, submit them to Royal Mail, and chase them through to a decision — including re-submitting where it's worth it. You don't lift a finger.
You get refunded. You keep 70%
When Royal Mail confirms a refund, you keep 70% of it. Our fee is 30%, and only ever on money actually recovered. No recovery, no fee.
↳ Start as a one-off on a single invoice. If it's worth it, we can monitor every invoice going forward.
The billing errors we look for
Weight-band overcharges
Items billed against a higher weight band than they should be.
Format misclassification
A Large Letter charged at the higher parcel rate.
Late guaranteed delivery
Special Delivery that arrived late and is owed a refund.
Duplicate charges
The same item billed twice.
VAT on exempt services
VAT added to a service that should be zero-rated.
Invalid surcharges
Unreadable-barcode, manual-handling and correction charges applied in error.
Billed-but-undelivered
Postage charged on items that were returned or never delivered.
The risk is entirely ours.
We only earn when you do. The audit is free, we do all the work, and our 30% fee applies only to money Royal Mail actually pays back — confirmed by Royal Mail, never self-reported. If we find nothing, or a claim is refused, it costs you nothing. The worst case for you is a clean bill of health on your postage.
Our fee is charged only on amounts Royal Mail confirms and refunds. No recovery, no fee.
Built for UK businesses that ship in volume.
If you post through a Royal Mail OBA — e-commerce brands, online retailers, subscription boxes, makers shipping hundreds of parcels a month — your invoices are complex enough to carry errors worth recovering. The more you ship, the more there usually is to find.
E-commerce brands
Online retailers
Subscription boxes
High-volume makers
Independent, transparent, and on your side.
Independent of Royal Mail
Clawback is not affiliated with, endorsed by, or acting for Royal Mail. We act for you.
Your data stays yours
We use your invoice data only to find and recover your refunds, and we handle it under UK GDPR.
A real, named person
Clawback is run by Saul Davis. You deal with a human who only gets paid when you get paid.
Royal Mail bills high-volume senders through a system that's almost impossible to check by hand — and the errors quietly cost UK businesses money every month. Clawback was built to close that gap: the tedious, specialist work of auditing those invoices and recovering what's owed, on terms where the business takes no risk. We focus on one thing — Royal Mail OBA billing — and we do it properly.