A disgusting behavior

This is very disheartening because I'm experiencing this for the second time at the same store McDonald's in Diepkloof Square. I'm not quite sure if it is intentional or it's an honest mistake. I do believe mistakes should happen once not twice. My first experience is where I ordered a mcfeast. And when I arrived at work I was given a big Mac. My second experience is when I ordered two jalapeno meals only to arrive at home and I then received one. I took it upon myself to call the store as soon as I got home and I realized that my order was missing. I then spoke to one of the ladies that was on the shift yesterday night this was around 20:45 to 20:50. Who apologize for their mistake and asked me to come to the store today. Upon arrival at the store I asked the gentleman that was at the front desk if I may speak to the lady in question. With no disregard I was told she's not there. He then proceeds to walk away with not wanting to find out the reason I am there and if he can assist me with anything further. It is very disheartening that they made a mistake I took it upon myself to make the call and to get myself to back to McDonald's diepkloof square at my own expense to be given such a service after the staff made a mistake that had nothing to do with me. I am truly disgusted by this type of behavior