How it works

One bill.
The whole picture.

See what you should have paid, why the numbers differ, and what comes back.

01Bring the records

Start with what
you already have.

One vendor. One billing period. Upload the files, then check the suggested details against the originals.

The agreement

What was agreed?

The contract and amendments establish the price and the rules that apply.

$1,200per circuit / month

The delivery record

What happened?

Service records or usage show what was delivered during the same period.

240circuits active all month

The invoice

What was charged?

The bill shows the amount requested. Existing credits stay in the calculation.

$360,000billed for September

$1,200 agreed×240 delivered=$288,000 expected

Network example, USD. Missing a file? Start with the invoice. Verlet identifies what is still needed before the result can be checked.

02Check the difference

See the difference.

Verlet calculates the expected charge and compares it with the bill. Explore the same method across three kinds of spend.

Network services

NET-0926

Observed: 240 active circuits · September
Agreed: $1,200 / circuit / month

Amount at the approved rate$288,000

Amount charged$360,000

Potential recovery$72,000

The signed amendment reduced the monthly rate from $1,500 to $1,200. All 240 circuits were active for the full period. The bill still uses the old rate.

See the calculation and sources

240 circuits × ($1,500 billed − $1,200 agreed) = $72,000.

Network amendment §3.1 · Circuit inventory + activation events · Invoice NET-0926

Illustrative monthly service line, in USD. Assumes the amendment covers all 240 circuits, with no partial periods, taxes, installation fees, minimum commitments or later change orders. Uptime credits require a separate SLA check.

Numbers match? Keep the checked record.

Something missing? The gap stays visible.

A difference? Review the sources before making a request.

Illustrative records, USD. Potential recovery is subject to review.

Travel services · $36,000 potential recovery

150 fully refundable tickets were cancelled before the agreed deadline. The eligible value is $60,000. Only $24,000 in credits has posted, leaving $36,000 to pursue.

(150 tickets × $400 eligible refund) − $24,000 posted credits = $36,000.

Travel agreement §6.2 + fare rules · Booking records + cancellations + credit ledger

Illustrative cancellation cohort, in USD. Assumes fully refundable fares with no penalty, no exchanged or flown coupons, and no additional refunds already received. Review each fare rule and credit deadline. Unused travel is not automatically refundable.

AI usage · $7,200 potential recovery

The bill uses $15 per million output tokens. The order form sets $12. The same 2.4 billion tokens, including retries, produce a $7,200 difference.

2,400 million output tokens × ($15 billed − $12 agreed) = $7,200.

AI order form §4.2 · Provider usage export + linked request records

Illustrative monthly output-token line, in USD. Assumes complete period coverage and no tiers, minimums, tax or adjustments. Input tokens and other charges are separate. The provider, model and harness do not change the verification method.

03Follow the money

Know what
came back.

Review the difference, send the supported request through your vendor channel, and track the response. Only a posted, matched credit or refund counts as recovered.

Follow the network example · NET-0926 · Illustrative history

Evidence assembled

The old rate is still on the bill.

The approved term and 240 active circuits support a $288,000 charge. The invoice asks for $360,000. The difference enters review.

NET-0926 · Amendment §3.1 · September circuit ledger

Potential recovery$72,000

Recovered$0

Network services · Illustrative recovery record. Money counts only when the credit or cash posts.

Finding: The approved term and 240 active circuits support a $288,000 charge. The invoice asks for $360,000. The difference enters review. Recovered: $0.

Human review: Finance checks the amendment, service period and any later changes. A named reviewer approves the evidence packet before it is sent. Recovered: $0.

Vendor response: The supplier accepts the rate correction. Acceptance is recorded, but the recovery remains open until a matching credit arrives. Recovered: $0.

Credit received: The $72,000 credit is posted and matched. Net spend is $288,000, the amount supported by the record. Carry the approved rate into the next cycle. Recovered: $72,000.

Bring one bill.
Find out where you stand.

Start with one vendor, one agreement and one billing period.

Review a vendor bill hello@getverlet.com How your evidence is handled