Why aren’t my Gourmet Points increasing, even though my cash has from serving meals?

Your Gourmet Points will only increase if you are in your own restaurant when serving the meals. If you are not logged into the game, have another screen open like the redecorate screen, or are visiting a friend’s restaurant, your cash will increase for those meals, but your Gourmet Points will not. Therefore, if you are wishing to level up, leaving your screen open to your restaurant is recommended.