Requirements: - Filza File Manager - Jailbreak Note: Please make a backup of the file before modifying it. Instructions: Step 1: Delete the game. Step 2: Log out from game center. Step 3: Open Filza and open /var/Keychains/keychain-2.db with SQlite3Editor (just tap on it). Step 4: Open the "genp" table and then type at the top:
delete from genp where agrp = 'A4QBZ46HAP.com.gameloft.SingleSignonGames'
and hit Search then Done so that it gets saved. Step 5: Reboot your iDevice. Step 6: Download and install the game again. Step 7: Now you're able to create a new account. Step 8: Close the game but keep it in the background (don't kill it from multitasking). Step 9: Log back into game center. Step 10: In game you'll now be asked if you want to use your old account or keep the new one. That's it! This might also work as a way to unban yourself also but it's untested. Special thanks to Sunsaya for the tutorial!
How to get unbanned from other Gameloft games: http://iosgods.com/topic/5595-tutorial-how-to-get-unbanned-from-gameloft-games-on-your-idevice/