Worst service ever!

I had a very terrible experience at Mc Donalds Sandton gate, there is zero level of customer service there, I was there on the 7th of December 2024 and was served through Drive-Thru and the lady who assisted did not scan for my points to be accumulated, I thought there was a delay until I bought the following day at another Mc Donalds and I received my points thats when I realised the lady might not have scanned my points so I went back today to query that just to be told that there is nothing they can do, the manager on duty Skhumbuzo advised I log it on the app which I did but he left me there with no communication, I asked his coleagues to call him for me as I needed to know whats next after what he had advised me to do he never pitched, I had to leave and called the store he answered and was talking on the side before he vould talk to me, I raised my concerns of being left just like that and he just took my number and said the superior will call me. Iam very much frustrated as I have to do all the admin whereas their employee did not do her job and worse to be told that "there is nothing I can do" why is it my problem that someone decided not to do their job?why should I suffer for things done by *********** people and worse no one seem to care, Skhumbuzo called 2 people which I assume its his superiors who also didnt have a solution to the query I have or just didnt care.