To be honest with you even if you contact support,there's still a chance you don't get banned. I've literally contacted support two times( just testing my luck I guess, or just to figure out how they ban people), the first time I contacted them I even gave them my player ID,so they saw the account had mods in it..and they just sent the generic reply that" these accounts are flagged by our system and may result in the denying of support" and they didn't ban me. This was like one year ago. I sent a text on support again about 3 days ago and I even told them I'm cheating, although not in pvp events and they just sent the same reply, so they might just not care about you cheating outside of pvp events, although this might just be my luck. Still no ban though. So this just leads me to speculate that 90% of bans just come from cheating in pvp events. And by the way not logging in I'm FM events isn't necessary.. if you don't claim any of the rewards you're still technically not grouped with anyone even if it shows you on a list.