Are you able to change the save options by saving it through Facebook. Many players I know have had to start over multiple times myself included because we are unable to regain our villages. Either by not saving it through game centre or Google play or not being able to go from game center to google play (and viceversa) however we’ve all linked our accounts to Facebook. The gem reward for linking it (to facebook) is great but given people change phones so often and Facebook is universal, maybe you could do side having a save options for facebook??