P_PAY_TRANS_MISMATCH Error While Attempting to refund for a TPD ticket

Hi

We are trying to refund few seats from group sales which have TPD status in subline. We went to the seat map and right-clicked on the seats from the map to return also used the return button on the SLI tab once the row(s) want to return are highlighted. 

Now we are getting the error message that TP_Pay_Trans_MismatchFailed Amount mismatch in T_Payment(-1000.00) and T-transaction (0.00) [nvo_bo_order.uf_dbwrite.443]

Would you please advise how can we fix this?