forget income tax password

sir my client from village area and some one registered his ITfiling account earlier but he forget all the details and even bank account no. entered by him in the account also shows wrong I tried all the options available on the site but I am unable toget the new password...sir how to recover his forgot password to file the income tax return. I am already emailed validate @ incometaxefiling.co.in
but dosent get the response...pls help