I've been having the same problem for over a month, and going by what I've seen on here, this problem has existed for years. I've yet to find an actual solution to it. I've had my enrollment withdrawn so I could re-enter, deleted and re-entered my payment information on my Apple ID, and I've even made a new Apple ID. The furthest I've gotten is contact with a Senior Manager who says that they are "reviewing" my request and that it will take an "undetermined amount of time." Honestly your best bet at this point is to keep badgering Support until they send you to someone who can escalate the issue. I can't tell you how many people I had to talk to until I found one that would.