he already did : Can't connect to official PVE-C server
or maybe not carefully enough.
Also to be noted that in the " clan & personnal responsibility " section you can read the following :
It falls under your responsibility to make sure not to break any of these guidelines and when in doubt, please contact any of our staff in our forums.
It also falls under your responsibility to make sure no one in your clan is abusing game mechanics or partaking in continued harassment. Do not associate under any circumstances with players you suspect are hacking, exploiting or abusing any of the guidelines above. If you suspect any of them are partaking in such actions, please report them to our staff and distance yourself or your clan from these players.
It is also your responsibility to know which clans you’re currently a member of, on any official server. If you are not going to be active in a server, please remember to leave the clan or ask to be kicked from it after a certain period of time.
Ignorance to these actions and guidelines will not be taken into consideration when appealing any possible restrictions put in place against your account due to this oversight.
Maybe ( and I say MAYBE ) it can be some actions a clanmember did , on another server , impacting him since he maybe didn’t left said clan …