Pathetic service and dumb staff

McDonald’s randburg 94 Milner Rd, Kensington B, Randburg, 2194. Is pathetic. Today I ordered a mcroyal no garnish, they put garnish. A few days ago I ordered and took almost 20min for a mega Mc****in. The previous time I order 2 cheese burgers and only get 1, and get charged for 2. The service is pathetic and if you ****s **** up every time I go there you have just lost a client and I hope your doors close soon ?