In some cases, your account is closed without warning. If you've lost access to your account, you'll need to contact the company's customer support to get it back up and running. You can also file a complaint with the company if you've received an email from them stating that your account was closed. If this does not work, you can always reopen your account and get your money back. Sometimes Cash App account is closed due to suspicious activities; this happens if you've violated their terms and conditions. If you've used fake or expired bank details, you may have had multiple failed attempts to log in to your account. If you believe you were scammed, you should try to log in again, albeit with different login credentials. If you've made a payment on a different device, you may need to authenticate it.