money missing

I did a purchase and the amount was debited twice. It shows on my notification and proofs it at the atm with (balance available) they even charged me twice for transaction fees shown on bank statement. I went into the belhar branch and they wouldn't even give me the time of day I just had to listen to them . And them (staff) trying to convince me no money is gone and that the bank statement proofs it one even said 200-100 =200 BECAUSE OF RESERVED MONEYS . WHAT NEXT , but the bank statement is incorrect the bank statement doesn't even go according my times ,purchases and withdrawals everthing is mixed up .this is unexceptable I WANT MY MONEY !!