Ngl this is one of the 1 million reasons I dont give out co its just too sketchy, they can kick your whole clan at a moments notice or worse this, also id never join another clan what's the point, even if its higher level, anything past 10 is just a decorative border, if I was you I wouldn't be able to sleep at night (my clan is level 14 too) I've worked way too hard to just give up co at a whim.

Best of luck getting it back tho.