Cashier at branch

I just went to McDonalds Adderley street in Cape Town and the service I received was pathetic and the cashier AKO was his name, just punched my order in at another cashiers register while assisting a client that came after me. Just did not pay any attention to me, and still argued with me. He definitely don't know how to treat customer at all and should not be working at mcdonalds. I love mcdonalds always buy there but after today i will strongly recommend people to change franchise and buy at a different branch and not there.