The Cash app frequently checks your account for problems that seem a little unusual and could lead to fraud. To avoid any cases of fraud, the Cash App does not allow the transaction. In addition, the Cash app did not send money, you will receive an instant refund to your Cash App account. In addition, if not instantly, it can take 1-3 business days to reflect the amount in your account.https://www.mailsupportnumber.com/blog/cash-app-wont-let-me-send-money/