My gamer tag is Spida897. I have never changed my gamer tag and I would like to do so. i have seen that I get one free change. So I went to change it and it said that I owe ten dollars when I have never changed it. So I talked to customer support and they said that it has already been changed. I don't understand this when I know for a fact I never changed it. Is there anyway I can get me free change back?