I found a temporary solution; if you have an Android device, download the game and connect to Facebook, create an plarium ID and sync the accounts. After that, go back to your iOS device and log in with the Plarium ID. This is assuming the problem is an IOS specific bug.

My player ID is um41552473 | 40723436. It is only fair that we receive compensation for the last few days 

Edit: you might be able to download the game to your PC and sync with Facebook if you don’t have an android device, if not you can use an emulator