Disgusting service ever

Good day I'm really not happy about the service I got from Diepkloof square Mac Donald..I placed an order for two big Macs and two jalapenos ..the service I got was disgusting from the teller and then I complained that they even have me drinks that were for another customer which they poured a while ago and guess what..they still have me a stinking attitude when I complained .. lastly they didn't even give my change ..I'm so angry on how they treat their customers and it's not the first time