I want to remind you that improperly using the Xbox Customer Support, including telephone support, Xbox Ambassador Chat, Xbox Support Chat, and other support avenues can get your account suspended, so please do not post questions that break the rules of Xbox Live.
Here are the direct links to contact the Xbox Live Enforcement Team, just remember that unlike Xbox Support, the Xbox Live Policy & Enforcement Team (XBLPET) has no live chat or phone number, the only thing you can use to contact them is by submitting a case review if you’re eligible.
After submitting, an Xbox Live Policy & Enforcement agent will begin a thorough review of the enforcement action. This includes reviewing available data and re-examining evidence that contributed to the enforcement, taking into account any new details that you have provided. Xbox device bans are not eligible for Case Review.