CubeCraft Games

It's possible that you clicked on a "free rank website" and your minecraft personal details were leaked to a second party thus (compromised)

Change your password for your email and minecraft to secure it again then appeal about it.

You might want to change your email password that you have hooked up to your mojang account just in case. Otherwise it might be because you are using a VPN (which you probably aren't) or if you use your account in multiple households. If not I don't know what to tell you :(

To my did me the same thing and not be to do