Go to your cash app application and then go to the Account Settings menu, scroll down and choose the Close my cash app account option. Follow the steps and click on “Confirm Closing  Account” this will help you to sign out from the cash app. After completing all steps, a confirmation email will be sent to you from the cash app that you have unlinked the cash app account or deactivate cash app. https://www.contact-mailsupport.com/blog/how-do-i-get-rid-of-cash-app/