HDFC BANK blocked withdrawal on my account

Attention! We've placed a Debit/Withdrawal Block on your HDFC Bank A/c XXXXXXXXXXXXX. Reason:A/c guidelines not met.Kindly visit your home branch. Thats the mesaage i got and i am unable to take out my money they asked me to submit a formal letter with a copy pf my ITR explaining the source of money and its usage. Can i opt for closure of the account? The bank employees said they wont let me close before i clear this mess also can i complaint through the RBI? Its a tough situation for me please help.