How do we test refunds and chargebacks in marketplace platform for insurance premiums under the new UPI cap structure?

Here are the caes to test refunds and chargebacks in marketplace platform for insurance premiums under the new UPI cap structure

• Start with Boundary Testing (Cap Limits):

  Simulate transactions that hit just below, at, and above the new per-transaction and daily caps.

  For example: ₹9,99,999 (should succeed), ₹10,00,001 (should fail). Then process refunds for those successful ones and confirm the system doesn’t exceed the aggregate daily reversal limit. This ensures your refund logic respects NPCI caps in both directions.

• Validate Partial Refunds:

  Insurance payments often get partially refunded when policy terms change. Test partial refunds for both small (e.g., ₹5,000) and large (e.g., ₹2 lakh) cases and check that your platform correctly posts only the refunded portion to the ledger and updates the customer balance without duplicating entries.

• Simulate Auto-Reversals:

  Sometimes UPI transactions fail mid-flight but the customer’s account is debited. NPCI and PSPs auto-reverse those within T+1. Test that your platform recognizes these incoming reversals, matches them to the original transaction (via RRN/UPI Ref ID), and updates both the customer and insurer accounts correctly.

• Chargeback Scenarios:

  Even though UPI technically doesn’t have chargebacks like cards, disputes can still be raised (especially for duplicate debits or policy cancellations). Test dispute handling workflows, when the insurer rejects or accepts the claim and verify how your ledger adjusts the amount (credit to buyer, debit to insurer).

• Refund Timing Compliance:

  UPI refunds have strict time windows (typically must be initiated within 24 hours for failed debits, or up to 5 days for policy cancellations). Test how your platform behaves if the refund window expires it should show an error, not attempt a refund call that NPCI will reject.

• Settlement Date Consistency:

  For refunds processed after midnight, ensure your ledger records them under the correct settlement date, not the original transaction date. This keeps your daily reports and GST reconciliation clean.

• Cross-Bank Handle Testing:

  Insurance premiums can use multiple PSP handles (@axis, @hdfcbank, @icici, etc.).

  Test refunds across these handles because refund acknowledgments may vary slightly between banks. Some banks send delayed confirmations for high-value reversals.

• Duplicate Refund Protection:

  Make sure your refund job or API doesn’t retry on a delayed acknowledgment and issue double refunds. You can test this by intentionally delaying the PSP’s success callback and observing if your retry logic behaves correctly.

• Negative Balance Handling:

  In rare cases, a reversal might hit after the insurer’s share has already been settled.

  Test that your system logs this as a negative insurer payable and handles it in the next settlement run, not as an ad-hoc manual adjustment.

• Reporting & Alerts Validation:

  Run test cases where multiple refunds hit your threshold (say >₹5 lakh refunded in a day). Confirm your finance team gets an alert and that your reconciliation report correctly shows total UPI inflows, refunds, and pending reversals separately.