ILL treatment from staff

So I went to the Eastgate prestige cinema on the 10/04/19 to watch Avengers. I was assisted by a lady pinky is her name, who was very rude, firstly she told me the tickets were sold out after making me wait as she even assisted people who came after me. Went out wanted to book something else on self service but tried prestige first just to find there was still space. Mind you the movie is commercing, after that ordered wine and she didn't take my order. Had to ask someone else to assist me there after waiting, by the time I got to watch the movie my spirit was so down that I couldnt enjoy the movie nor think straight due to her rude behavior towards me. I just left, didn't even finish the movie. I would expect a certain level of service from the prestige cinema. I called the call centre lodged my complaint the following day, nothing was done. I have the recording of the call. I had to to follow ups as to what's happening, till today I haven't heard from the manager, I think they are protecting her or something, cause it has been days and weeks. I always call customer care. Even today I called customer care, wasting my airtime to remind your managers to do their jobs. Only got the case number 3 days ago after calling the call center over and over again. And nothing has been done till today. I have recordings to support what I am saying. Do something ASAP, please. This is unacceptable.