style of working restaurants

I like 👍 the style of many restaurant in madhapur hyderabad india, who first take money and give coupon and then food is served. Because here if the client does not like the food, we will not bargin for discount or don't give money. Liking of food is individual choice. He has to eat the food or leave it. It is upto him. He has no choice as he has already paid the money and he knows he will not get the money back. This is not in case of our restaurant because we take money after food is eaten. Liking of food is individual choice. Somebody likes it and somebody does not like it.