I can defend this situation as follows: I have a girlfriend who lives in the same house and is a member. She only registered on the site and did not deposit any money, nor did she withdraw any money.
No matter if she deposited or not. It is clearly stated on their website that you cannot register more than one account. In fact, Only one account is allowed from one IP, Household. So, No mater if your girlfriend or your friend or brother makes a account than leave it, it still violates their rules. This is unfortunate, but still within the rules. So, they have right to take action against you because they do not allow more than one account from a same IP, household. I am sorry to say, but you are unlikely to get any community support regarding this matter. We always hear story like father, mother, sister, brother's accounts. But, unfortunately, we cannot verify that. Right?