Root Cause

• Non-refundable charge status: The charge has already been settled, voided, or finalized in a way that disallows refunds.
• Gateway restrictions: Some gateways impose limits on refunding certain types of transactions.
• Time limits exceeded: The refund attempt was made outside the allowed refund window defined by the gateway or issuer.
• Partial or full refund already processed: The charge may already have been refunded, fully or partially.

Troubleshooting and Solutions

• Check the status of the transaction in Chargebee and at the payment gateway.
• Verify whether the charge has already been refunded or if the refund window has expired.
• Check if the payment method supports refunds.
• Verify that the refund amount does not exceed the available balance after previous refunds or chargebacks.
• Inform the customer appropriately if the charge cannot be refunded through standard processing.
• If the refund cannot be processed, consider issuing the refund through an alternative method or manually by initiating credits.