Hi Veena,
To make sure the transaction shows up in the bank feeds, first check that it isn't ticked in the bank reconciliation screen. If it's not ticked and still doesn't appear in the matching transaction screen, find the recorded transaction and verify that the amount, date, and bank account details are correct and consistent between the recorded refund and the bank feed transaction. For more details on processing supplier refunds, check out this link. If you're still unable to find the transaction, you can manually match the transaction.
Cheers,
Princess