Allahabad Bank — refunded amount rs 900.00failed to be posted in sba [protected]

M/S Amazon.i refunded Rs 900 for my cancelled order on 04.06.2019 through NEFT with refund reference number[protected]/04.06.2019, but Allahabad Bank has failed to post this amount (Rs.900.00) to my SB account till date. Tried to contact C C Allahabad Bank on phone number[protected], but after initial bahane bazi, I was informed that no such amount was received from 04.06.2019 to 19.06.2019, with any refund reference number. on this point againt contacted C C Amazon, they once again confirmed the refund and I was informed that this RR number is providrd bu bank only. Please resolve the issue and pay my dues without further delay.