Bought Battlefield 4 Premium Edition, But Premium was not Unlocked on Battlelog

Have you downloaded the Premium data from your XBL store? Please make sure that this content pack is installed on your machine, you can additionally try to delete and re-install the Premium content on your console. Make sure that you manually logout once in order to login.

You can try to clear your console cache as well. To clear the cache of your Xbox One console, hold down your finger on the Xbox One icon on your console for about 10 seconds until the machine shuts down. Just boot it up again and the cache should have been emptied.

Cheers

Basti