What sort of help do you need? Are you filing, but the return is being rejected or are you having trouble transmitting your return?
This TurboTax Help article provides some advice and guidance: E-filing Problems
cannot sign into my account. I have changed passwords but to no avail
This link to the TurboTax page Account Recovery Request for your TurboTax Account has information on how to recover your TurboTax account.