FamPay Payment Refund Problem

On 21 September I made a UPI payment of ₹449 through the Fampay app. The amount was successfully debited from my account, but the recipient did not receive the money and the payment has not been credited back to me either. I contacted Fampay customer care regarding this failed transaction, but I did not receive any response or help. I also have a screenshot showing that the ₹449 payment was marked successful on Fampay, while the recipient confirmed that no amount was received. I request that my ₹449 be either immediately refunded to my source account or correctly credited to the intended recipient, and that I be informed clearly about the status of this UPI transaction.