Incorrect orders

I went to the new McDonald's in Atteridgeville and ordered 3 meals, a happy meal, mcfeast and a mcroyal meal. I enjoy the mcroyal burger because of its contents. When I got home and opened our take away, I noticed the burger had 2 patties as well as 2 slices of cheese. I thought the only mistake was an extra patty but after taking a bite I noticed there no tomato either. I couldn't drive back so I decided to just eat it. Please make sure we leave with correct orders because we never check.