Zelle is an online service to transfer funds that aim to replace the traditional methods of cash or cheque. For a successful transaction, it is mandatory to pass the security check and if you fail to do so, Zelle cancels the transaction and Zelle Error c201 is displayed on the screen. If Zelle notices any malicious activity in your account, it stops the transaction and your number is reported as spam. This is generally done for your own security.
