Hello and thanks for your reply. 

We have successfully verified your ownership of the account!

To prevent anyone else from being able to access it again, I can put a lock on your account. This will prevent all access but ONLY if you have changed your Google Play/Game Center password. Immediately after applying the lock, I will send you an unlock code giving you access to your game from the device used to enter the unlock code.

Please note that this procedure will block all other devices from your game, allowing you to play only from the device used to unlock the account. 

Always remember to secure your email accounts before continuing! 

If you're playing on Android, please: 

- open Gmail (on your web browser) -> on the bottom right corner tap 'details -> then 'sign out' of all other web sessions