I believe that the issue has been fixed for the time being, it seems to be something that occurs every now and again with updates to our donation system. I don't know if management ( @Wilco) Would be able to give you the donator status for your paid period as last I heard he was developing some kind of short term solution to this issue for people who had been subject to it.
Thanks for the bug report, we try our best to keep issues such as this one to a minimum and can assure you that it's not a common thing. :blush: