Hey everyone! Thanks for your patience regarding this issue. 
Our server team sent out a fix for this within 2 hours of it occurring, so it shouldn’t be happening anymore as of 15 hours ago. However, if you are affected please be sure you’ve put in a ticket as Virginia suggested. We will get back to you all shortly, at this stage we are just confirming the best solution. Please note that your account progress is not completely lost, we store it on our servers, so we’ll just need to link you up again.