If you believe your phone is cloned what do you do?

It is not possible to clone an Apple phone. It is even more difficult to clone multiple phones owned by the same person, one after the other. Open Settings, tap on your name at the top of the screen, and scroll down to the bottom of the Apple ID page. You will see a list of all of the devices currently registered to your Apple ID. From there, you can tap on any device's name to see detailed information about that device, and you can also remove unknown devices from your account, after which the device will not be able to interfere with your account.