Next, click on any issue and then on the Message Us button at the bottom. You will have to submit one proof of account ownership which can be debit/ credit card statement showing Paytm account transactions, a confirmation email or SMS for a Paytm account transaction, proof of phone number ownership, or police complaint proof against lost or stolen phone. Once done, Paytm will validate and block your account, after which you will receive a confirmation message. How to block Google Pay account Google Pay users can call helpline number 18004190157 and chose the preferred language. Select the right option for other issues.