Board Thread:Questions and Answers/@comment-11431707-20150813203929/@comment-27508440-20150814004658

It's in the settings.

After logging in to the game, you should be in the home screen. On the left there should be a menu button left of the presents box. Click settings. Scroll down until you find "Refresh Data".

Note; "Refresh Data" will not delete your account's progress, but will redownload all the downloadable content.