Andhra Bank — Transaction failed money debited!!!

Address:	Hyderabad, Andhra Pradesh, 500000
Website:	andhrabank.co.in

I am m a david, went to purchase a product which little costly at khords hyderabad, secunderabad clock tower, swiped the card for 43800/- to buy drum pads, money debited but not shown in shop owners account.
Waited all day till night for the final settlement receipt, but that transaction did not reflect on they machine, confirmed that it dint go through there end, now i want the bank to refund me, i have emailed, called to many people, customer services, manager dept, gm, agm of andhra bank. Adc help desk says we have to get the details of the transaction yet, once confirmed that the transaction is failed we will refund the money, but taking complaint cannot solve the issue.

want to know one thing when will i get my money back