You just said that the account is shared by more than one person and is a senior member in the group. That already is against what customer service asks. If you all suspect that the original account holder (Who gave it to a friend) is the one that kicked them then there is only one thing you can do about it. Remove his seniority and invite the members back. Its like the person before me said. You can only kick 10 people from the group each day. Any more is them leaving on their own. This has nothing to do with making the game better. It is your responsibility not to share passwords with anyone no matter what. If you chose to do so then it is under your responsibility to accept what happens. It would be a completely different story if you were *ed. But you weren't, you just shared the account. Learn from this and do not share passwords unless you trust the person completely.