Most of the time, cash app users created a new cash app account recovery with different details and unable to access their old account. If you are one of them, then it is advisable that log out from your new account then log in with your old account. Enter the required information with your complete name and enter the last 4 digits of your SSN with your DOB. Enter other required information and access your mail account.

https://www.my-lenovosupport.com/blog/how-do-i-recover-my-cash-app-account