Successful payment and order integrity
Whether one payment makes one order, and what a double click, a back button or a refresh does.
Payment testing
We run payment, refund and subscription flows end to end with real cards.
A sandbox makes everything look right; what surfaces once money actually moves is a different set of problems. 3-D Secure, bank declines, timeouts, double submits, partial refunds and subscription renewals are exercised with real cards and real bank responses.
From the checklist
41 check items
Declines and interrupted payments
What is left behind after insufficient funds, a cancelled 3-D Secure step, a timeout or a closed tab.
Refunds, cancellations and partial refunds
Amount, timing and the accounting record; whether the balance after a partial refund is right.
Subscriptions and recurring charges
Renewal, upgrade, downgrade, card expiry and access after a cancellation.
How we run it
- We map the payments: which method, which currency, which bank, which flow.
- We run the happy path with real cards and confirm every charge separately in the provider dashboard.
- Then we break it: declines, timeouts, cancelled 3-D Secure, double submits, closed tabs, dropped connections.
- Refunds, partial refunds, cancellations and the subscription lifecycle are checked against amounts and dates.
What you get
- A method × scenario matrix with the outcome of every cell
- Provider transaction id, amount and screen recording for every finding
- A reconciliation table of what was charged and what was refunded
Out of scope
- This is not PCI DSS certification or an audit; we do not store card data.
- Fees on test charges and refund timings follow your own provider agreement.
What this typically turns up
- Coming back from the 3-D Secure screen marks the order paid with no charge taken
- After a partial refund the invoice total still shows the original amount
- An expired card ends access at once; no renewal attempt is ever made
Questions about this service
Is real money spent?
Yes, in small amounts. A sandbox cannot imitate a real bank decline, the 3-D Secure flow or how long a refund takes. Test charges are listed in the scope approval and refunded when the engagement ends.
Do you provide the cards?
We use the network’s test cards. If a method can only be opened at your own bank — a corporate card, a country-specific wallet — we ask you for that one.
Do you work against production?
If payments are genuinely to be tested, yes, against production. We place orders from flagged test accounts, log every transaction, and cancel or refund all of them at the end.
Included in
ReleaseWhole product, 3 platforms, pre-launchFleetRegression every release, monthlyEnterpriseRegulated sectors, custom SLA
Other services
Functional testingDo the critical flows work end to endRegression testingDid the new release break the old oneCompatibility matrixReal device and browser matrixPerformance & loadLoad speed and behaviour under loadSecurity reviewApplication review on the OWASP Top 10API testingSchema, error codes and boundariesAccessibilityWCAG 2.2 AA and screen readersUsability reviewFlows that work but wear people downLocalization testingCountry by country, with native speakers
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