Inconvinience caused me a warning at work

i work 5min away from KFC in randburg sqaure. My shift starts at 10:00AM. So i placed an order of a sandwich and a double crunch burger at 09:40. There were no ques so i expected my order not to take some time as other people were receiving theirs in time. people who came after placed their orders and left when they got theirs but i was the only one that hasn't received what i orderd. i asked one of the ladies about my order and she went to back, came back and told me that the cooker did not see my order and it will take 10min to prepare. the time now was 10:00AM. Worst part was that they had to replace one chicken fillet with a chicken patty as I told them i'm late for work. I'm not impressed with the service as now i received a warning for late coming.