Brits McDonalds superiorly poor service

So not taking into account that it is almost a norm to always mess up your order or not giving all the items ordered which you pay for you get the worst service ever. I myself used to work at McDonald and know that you can change an order eg. No condiments please. For the last 15 years I always order a Bigmac with the spicy hotsauce, well not anymore at this McDonalds, you can't have your burger amended in any way, not even pay extra for the sauce and have it put on, you take exactly what is on the menu, nothing can me added or removed with an added FU attitude, this was just before 8pm on 27Sept at the McDonalds Brits Drivethru.