Status (13 Nov 18, 15:12 GMT+0): We have now fixed this issue. If you are still experiencing problems recovering your account, please force close the app and restart the game. Our apologies for any inconvenience caused by this issue!
Status (13 Nov 18, 13:50 GMT+0): We are currently investigating this issue here and hope to get it resolved as soon as possible.
We are aware that some players on iOS devices are currently unable to recover their progress after reinstalling the game and/or switching between AppleIDs.
Thank you for your patience while we are investigating this issue here.