With the use of the Cash app, you can send money from your bank account to anyone anytime. You have to simply add the account details and the money, then mention the name for further reference. If you are unable to send money from a bank account, then make sure you are connected with the strong internet connection. Also, ensure there are sufficient balance as well as reload the webpage. If you are still unable to do it, then avail Cash app customer service to sort it out.