Bank Of Baroda — my refund amount

Address: Madhava nagar, Varun motors truevalue, opp:- Walmart., 503001

Requested to the head of bank of baroda!
Sir!
Im an regular customer from bank of baroda, so the reason is i ordered an amazon product that oppo a7mobile phone, and i pay from debit card some reasons i have, so i canceled that product, the amazon customer service were said that minimum 4 to 5 business days the refund will back/credit into my account.
But there are 20days completed. My refund will not credited to my account.
And i went to bank of baroda also, untill there are no response from bank.
So please kindly clear my refund amount
Thank you...

Moole vinith,
Nizamabad district, telangana state.
My contact number:- [protected]