Cash app is one of the end to end payment transaction mode that makes it more safe and secure. You have need to set an SSN and one ID to keep your account secure. You can use these details to make a payment that tracks your information. Even, you can opt any alternative option to get Cash app without phone number. Feel free to call us to resolve your query. https://www.email-contactsupport.com/cash-app-customer-service-number/