Amount deducted from account

Location/place: Abohar/Punjab

Name of company/service: SBI ATM

I have a savings account with SBI. I transacted in SBI ATM on 1/8/2012 for withdrawing Rs 20000. The machine was unable to dispense cash. But an amount of Rs 20000 has been deducted from my account. 4 days have been passed but I did not get my money back.
Ajay raheja
Mobile 9501268000