So, the quality and flavor of the food gets a 10/10 from me, but the restaurant itself gets a 1/4 ...

I saw an ad online for the grilled cheese sandwich here. Banh nuong pho Mai. I love grilled cheese sandwiches, so of course I wanted to try it. I've tried to eat this sandwich 4 times. Three out of 4 times, they did not have the grilled cheese. That's ridiculous. It's clearly a very easy and popular dish. Why don't they always have it available? The one time I was able to try it, it was AMAZING. So, the quality and flavor of the food gets a 10/10 from me, but the restaurant itself gets a 1/4 from me because they never have what's on the menu.