I had this problem pop up a while back, and mentioned it in the 4.80 bugs thread. I was going to make a GC character myself, before I looked more in to their history and their cause.
Yes, Igiss made a mistake. Yes, you will have to destroy your rep to get the ID. You need to be friendly with the KNF to get any ID from them.
You could wait for the next version of the mod, where Igiss will probably fix the problem, or it may be possible for someone else to get the ID for you, since this is a special case.
Ofcourse Igiss made a mistake, he is only a demigod :D lol
As for the ID, I think an admin could simply pull up her character file and place to appropriate ID there, since this is a special case, or like mentioned she could have another player assist with the ID Purchase.
I *seriously* doubt there would be problems with it since the community is pretty agreed upon about this matter, so I don't think the admins would have a problem, but you never know. :)