Andhra Bank — Refund amount is not reflected into my account

I booked a room in oyo on dec29 th, some tehnical problem oyo was cancelled the order and they sent refund amount to me, till today the refund amount was not credited into my account, oyo sucessfully sent a money from their side, they are sent to me bank reference number itz nearly one month completed this is not the correct way sir, treating like this customer so plz refund my money back into my account, i paid amount through phonepay, i contacted phonepay supprt they said all sides of refund transaction is sucessfully completed only the problem is in your bank, thats why i contacted to you, last one week i am calling to andhra bank customer service no one is responding