I've been leveling a toon pretty heavily this past week - using nuok's and kick's quest profiles - playing ~10-12 hours a day for the past ~5-6 days with guild bonus and leveling gear. I intermixed instances, archeology, and gathering as well. No grinding. But apparently I leveled too quickly and this triggered an auto 72hr suspension. I called and gave them excuse and they lifted it and reactivated account on the spot.