[Resolved]  SBI ATM Cum Debit Card — Amount debited from my account but it not credited to merchant's account

Sir,

i used my SBI ATM cum Debit Card at Univercell Mobile shop, Indira nagar, Bangalore on 22/10/2008. After swiping my card in POS terminal I have given my pin number to them but nothing happend . They asked again my pin number and i have given it . then that transaction completed . i got the receipt also . Then i noticed that the amount debited from my account twice. but its credited to merchant's account only once. i want to track my amount .. where it hase gone . and they r telling sometime it has gone to bank's suspense account. i want to know whether it is there with bank or not. please give me the correct information as soon as possible.