National Payments Corporation of India [NPCI] — amount not credited in receiver account

Address:

500053

A 5000/- amount is not credited in my reciever bank account [protected] of bank of india. Which done on 05:10 pm, 31/10/2019.
Amount is debited from sender (My) account but not credited to receiver account.
Upi reference id:[protected]
I already asked the respective customers care, but they says amount will refund, and now they says amount transferred to bank of india, but not credited to account holder.