Ban from Halo 5 but why

Hello to everybody,
I just saw that I was banned from the H5 servers during one month but why ? I really don’t understand I did nothing special. Can someone help me ? One month, it’s really long. I tried to contact 343 industries but it is impossible to find a telephone number on the internet. Maybe someone know a solution.

Thanks for your help.
Blom38

Please use the ban thread pinned at the top of the Halo 5 support forums for any queries on matchmaking bans

It’s also possible you may have been banned for rank manipulation, so I would also give this thread a read over:
https://www.halowaypoint.com/en-us/forums/58b8518e005f432381ab99fbcaf931e0/topics/matchmaking-and-ranking-manipulation-bans/33494f76-41cc-4090-b537-01a46582f88f/posts