I have never gotten charged the rep fee and day I played. That does't necessarily mean that it is not charged because i logged in, there may be something else that triggers it that you aren't doing. Ask other players on your server if they experience this also. I have played on 3 different servers and have noticed not everything works exactly the same from one server to the next even at the exact same time. You could always send in a support ticket everyday on the matter and in a month or so they might bother giving you a reply.