Clash of clans from IOS to Android when the IOS device is very broken - help!!

[AC Question]

Ipad is broken and we need to get a new tablet for my boy but we cannot get into games centre of his Village to link to a new device using the settings button. Anyone any ideas how to do this as it has taken him weeks to get to this position and lots of expensive gems!!! so don't really want him to lose the data

thanks

Ned