Corporation Bank — Some amount is not being reflected in my account

Address:

Gurgaon, Haryana, 1220p1

Hi my name is dhruv, i just bought a product from amazon the product was have some defect as i paid that amount from my rupay card so the refund initiated was on rupay card. But till now today 10 has passed but i haven't got my refund the problem is with the bank as the amazon ppl have completed the process and bank has also revieved but they are not transferring it in my account i don't why is this happening...