I lost my previous account. After update and reinstall I tried to switch account through my linked email id and pass. It shows 'there was a problem with the email id. Please recheck and try again.' But I remember the id and pass and singing right now on forum. Please give my account back IGG.
I installed the old version using the instructions from this thread:
When you start the old version, you will have to go through a bit of tutorial to change accounts, but it seems to work. Also, if it tries to make you link your account before even letting you in the game (which it will do if you quit the tutorial before linking an account) then you can just link to a fake account and then switch to your real account.