Managing personal Outlook.com account settings, security, and privacy
They're not going to unlock your account. They will tell you that it doesn't matter HOW the info got on your phone, just that it was on your phone and you then uploaded it to One Drive, thereby violating Microsoft's TOS. Ergo, they will tell you that your account is in violation and they "properly" locked your account and they will NOT give it back or unlock it. So you have just lost everything that they locked which sounds like your Xbox, One Drive, etc. Anything associated with your email and phone. LOTS of people are apparently going through this and have complained here. There are quite a few threads already existing here talking about the situation.
I think a lot of people mainly samsung users like me have had their accounts locked over pictures because samsung are closing their own cloud service. It's mad they don't give you a second chance seeing how majority of people don't read the rules surrounding pictures on onedrive because onedrive is the last place anyone would put pictures.