Worst service ever

My pizza was burnt. Ask the waiter if it was please possible to get the pizza re done. The chef passed the message on via the waiter that thats the way the pizzas are done here and I must accept it. Ask to speak to the manager, showed him my pizza, he then said that's the way the pizza is done and I must accept it. That the chef won't change it or remake it. So essentially you as the customer means nothing because they have some "hot shot" chef calling the shots