State Bank of India [SBI] review: atm cash withdrawal transaction successful but no cash dispensed

I had tried withdrawal of 20k from SBI ATM, whit the ATM did not dispend as I had not enough balance. But after some days I got a message of lien balance. which got deducted from my account post I transferred the funds. After following up with bank twice, I couldnot get the amount back. I raised a complaint with RIB, post which I got a call from Mr. P K Chaudhari who said he will revert the money. But this also did not happen. SBI is making false promises.