All along, I've been playing several Clash of Clans accounts using different Game Center accounts on one device, and the switching worked just fine, with the switch village option pop-up always available.
But just yesterday, I logged into a friend's Game Center and COC accounts and when I tried to log back into my own accounts today, the switch village option isn't available and my Game Center is now stuck with my friend's COC account!
Is there a way to solve this problem? I've tried to delete the app, logged out of my Game Center account, restart my device then re-login into my Game Center account and re-install COC app, but it doesn't work at all! I tried to reformat my device too but it didn't work as well! Please help me! Thank you very much!