Bank Of Baroda — Void amount

Address: 560055

1week before I went to a camera shop in Bangalore ND in process of payment ..Myn was a debit card ND I swiped 50, 000 but the camera cost was 1, 10000 ND after swiping. the swiping machine was not accepting to draw more amount..ND the sales person voided the amount but till now money was not transferred into my account...ND I asked sales man why it's not been done ..He said it's ur bank problem contact ur customer care he said ..ND I have done. Tht too...Why iam approaching through message is ur helpline numbers are always busy ND no response..So because of these all stuff my project in college is gng to cancel ND my college people have given me4days time to do tht ND it's all based on camera which I'm gng to buy ...NW I can't purchase..Kindly give me the solution for this...ND the shop name is FOTO circle located in Orion mall ..bangalore