Pizza Hut — Promo codes on site dysfunctional

Address:

Gurgaon, Haryana

I called the store to order-in pizzas on 13th january (Tuesday). Upon inquiry if there was some offer going on, the operator told me to order through the website to avail a 1+1 offer on medium pizzas. I went to the website and tried the promo code 'PHE07' several times between 9:15 pm and 10:00 pm but the code did not work. Every time i double checked to confirm if I was choosing the right category of pizza, so that cannot the the problem. Called the outlet again but the operator rudely told me that he cannot help. I had to eventually pay the full price for the 2 pizzas ordered since it had got too late to further pursue the issue. In between i also tried their app since it claimed to give flat 25% discount. I downloaded the app, registered (took me good 10 minutes) and ordered but there was no discount given! Why have these codes when they don't work? Is this a way of fooling people?