United Bank Of India [UBI] — Refund not credit

2 nd of this february i booked train tickets on Amazon through debit card o[censored]BIand on 8th Feb i canclled it for some reason then at the same day they initiate my refund even i got the refund refference number also but i didn't get the amount of 4905 yet . They told me to contact bank but they refuse to cheack it please cheack it and solve this as soon as possible .
Ac[protected]
RRN NO- 74332741040103962353352
Amount -4905 (through card ending with 4765)