Domino’s Pizza complaint: 2 minute guarantee

I have order pizza 2 times, the first time they didn’t meet the 2 minute guarantee, the timer showed it was over 2 minutes never received an Email for the free pizza. I overlooked it thinking maybe it take 24 hours to appear and it never did. The 2nd time the timer stopped for the 2minute guarantee 3 minutes before the time it shows that I would get the free pizza and it was 7 minutes after the timer stopped when I received my order. My complaint is do not advertise something you are not going to honor. I stopped going to the Dominos because of poor customer service and decided to try them again recently and still found myself disappointed because of this 2 minute guarantee. The store is the only one in my area because it’s a small area and it’s bad when I go to another pizza company because this store doesn’t care about the customers and I have seen them treat people rudely. I am a Manager in a customer service environment and my employee would never get away with the store this location gets away with and seems as if no one cares. I didn’t go directly to the store to complain because of fear that it would be a situation that would result in an argument and I would still have to write this complaint.