Uttar Pradesh State Road Transport Corporation [Upsrtc] — Refund not received for Cancelled ticket

I booked ticket from UPSRTC website. And later on I have canceled my ticket . I received cancellation voucher but refund not received . When I enquired about my refund I got a revert that you email the issue. I have emailed several time but no response . I contacted UPSRCTC but they also never respond. The details are :
Ticket No = 15593440
Cancellation voucher no= 15594325
PNR No = XXHW[protected]
Date of Journey = 04/04/2021
Refund Amount = 1472
Please look at attachment and refund my money asap.