Here, you must be 18 years old to verify your identity with your full username, date of birth, last four digits of SSN on Cash app account. Sometimes, it asks for more information to identify your identity. Make sure, this information will never ask on call, you have to provide this information on your Cash app. If there are any issues, then use Cash app number. https://www.my-accountrecovery.com/cash-app-customer-service/