Hey I'm Max on that group and am an admin to a point for instance I can unban etc.. but as far as group control is Erik I believe. There is a bot which bans anyone who post's a link maybe why you where banned I don't think anyone banned you on purpose. which can be fixed or I don't know if another group was added. I cannot add any other admins etc.. -__- so I don't have much control. Feel free to msg me directly on telegram I check it more often.