Worst service experience. Review on Domino's Pizza, Netaji Subhash Place, Delhi NCR

I went to Dominos in Netaji subhash palace in Delhi and ordered Some pizzas and Their New Burger product. So in 10 minutes service boy delivered whole order on our table but when I opened Burger then in second burger I found that Burger was only Bread piece there was No toppings on the burger so for this issue I called that service boy and service boy said sir please give us back this burger and we will rebake this. So I gave them my burger but after only 2 Minutes boy came to me and said sir this is your burger and we put toppings on it. I sad are you mad without baking you put only Toppings on this cold piece. I talked to Store manager and he said sir please do not pay for this product eat this free of cost. That was not good response by Dominos if there is fault by Dominos side then they will give you that product without any cost.it means public want to eat free.