Punjab National Bank [PNB] — refund not yet received

I ordered one plus five phone from Amazon two times !st time it was cancelled but the payment was debited from account.It received to Amazon .Amazon is saying they have returned the money but its not showing in my account, they have also given refrence no[protected] and I received a message on 25th august that the return has been initiated of Rs 38, 099. I have been calling to customer care but no proper response is given to me. please see through this matter or else i will be going to the court