You are going to be redirected to the official website to finish the download when you click these buttons above.
You can contact customer service through the in-game support option or visit the official Rovio support website for assistance.
Open the app, go to settings, and select the login option to connect with your Facebook or Google account.
If you have a previous account, log in using the same credentials; otherwise, create a new account through the app.
Rovio does not provide a direct customer number; support is primarily handled through their website and in-game support.