Hi Stumbler! Nurse Joy here to assist you with any Account related FAQs 📒 
To recover your lost progress on Android or iOS, you need to have your account connected to your Facebook profile.  
To connect your account with Facebook just open the Game, go to "Settings" (top right), tap "Login", then follow the steps to login and complete the connection. 
After that, you can follow the same steps to load your account on any other Android or iOS device. Just make sure you're using the same Facebook account that your game account was connected with.
Please keep in mind that you cannot use Facebook to load your progress on PC (using Steam).
If your account progress got lost and it was not bound with any platforms, please send a message to our Customer Support team and we'll do our best to assist you. You can contact us by using the chat widget on the bottom right of our Support Web Page!
Always a joy to help!