They simply have stolen my account!
If you change your device and move from IOS to Android, ‘connect with Facebook’ functionality does not retrieve your old data.
Support fooled me for a week saying that accounts have not the same location (WTF), so they cannot recover the old account or migrate it to the new one, and dropping the conversation each time.
When I tried to report the problem as a bug, they said that is not a bug, even if there is not specified anywhere that the functionality does not work between different os, indeed, it’s guaranteed!
I Tried to contact them in game, by mail, by forum: they did not answer or they drop conversation each time. A functionality that is supposed to work is not working. Isn’t that the definition of a bug?