Poor service at McDonald's parkdene, Boksburg

I get horrible service everytime I go to McDonald's in Parkdene Boksburg. Their Mcfeast deluxe lacks the BBQ sauce, last night their chips were half cooked and I got a coke instead of the Fanta I ordered amd when I told the lady who was handing us the food on the drive thru she just told me "coke was punched in on the screen"... No apology, no offer to give me the correct drink I ordered... I don't normally go there but when I do, the service is horrible!!