Amazon India — Pending refund from 2 months

I ordered a dining table set on 7th November 22, waited for almost 15 days, not received hence had cancel the request n ask for the refund - they are saying we initiated your refund on 30th of Nov but till date I have not rec'd my money, 15799 RS. Called them so many times they says they need to generate a Refund reference number but it's more then a month no number has been generated. Calling them every second day, asking begging cried for my money but no response. Checked with my bank also but no money has been refunded. This order was placed with a friend's help as they are a prime member. We have sent emails, chat so many calls but they are not refunding my money back. Please advice. The Supplier has also refunded the money.