McDonald’s complaint: Poor customer service and food quality

Ordered a Big Mac meal at the drive through and did not order a large version
Told st the window the price was £7.95 which was not what the Big Mac meal was quoted as costing on the drive through price boards. They tried to charge me for a large when I didn’t want that. The chap who served me was unrepentant and didn’t know what I was in about when I told him he was quoting a different price to what was advertised on the drive through price boards
I eventually explained that I didn’t want a large meal and that he should ask me before just presuming I did
I wouldn’t normally complain but when I did get my food it was really poor as has been the same the last few times I have had a Mac Donald’s
The chips were cold and limp and the burger was cold and thrown together in the box with lettuce everywhere and the meat patties sliding out very dull cold and poor