Once payment is made which are non-refundable or non-cancellable for any reason.
Transaction fees charged would be borne by cardholder for any payment
(including duplicate payments).
Transaction fee charges would not be refunded / reversed under any
circumstances for any refund / reversal / chargeback / any other reasons
and even duplicate payments.
Card holder or customer can connect call center / Helpdesk / Helpline
for further query / disputes / chargeback.