Mcdonalds Uber Eats

Uber eats and Mcdonalds as a combined service is utterly pathetic. Patty sent on its own in a paper bag when a burger with 2 patties were ordered. You cant contact Mcdonalds directly as the line listed on their website does not exist and you can only lodge a complaint with uber eats on their app which they don't respond to, so you purchase food from a franchise store through a franchise app and no one manages complaints and incorrect orders. I am unable to go to the store to purchase the food and if it was incorrect I could correct it immediately whereas in this situation your hands are tied