Pizza Hut review: service poor and disrespectful

My order was suppose to deliver in 15 mnts put it was failed to delivery even after 30 mints. And orders after us were served first. When enquire about this to manager she was replying disrespectful and not pleasing, she was telling me if u wish you can cancel. Her name is Rosie. I ever expect such a attitude response from manager and was hurted to core.