To be fair, this does not sound like it only affects players breaking TOS anyway. There are reports that individuals with one account trying to load that singe account onto a new device (which is supported and encouraged by SC) are also having trouble. This leads me to conclude as well that the problem is on the Apple side of things. I would encourage players to
1. Mess around with gamecenter. I mean even as far as deleting gamecenter alt accounts from your device.
2. Some people are reporting that a factory reset is also allowing this to be fixed.
In any event if anyone has found a solution please post the exact steps you have taken to solve your issue to help out the community. I would try but I'm on android






