Cell C Terrible Customer service, and bad customer satisfaction

I have never been so disgusted with the level of service I received at Cell C. First I went to the Mall of Africa branch to get a replacement phone for an iPhone XR as I was instructed by the Cell C repairs department. All the staff there was so rude, and the most disturbing thing is that it was all males. First, they told me that there are no iPhones at any of their stores without even bothering to check for me after I insisted that they contact the repairs department themselves which was not helpful either, I was deliberately made to sit at that store until they knocked off just waiting for the Region manager to give feedback if whether or not she can get this iPhone for me. The customer care call center is just as worse, one agent will tell you that they do have iPhones, and the other one will say they don't. When you finally get to the cancellations department, because I feel my only option is to cancel my contract at this point since I am paying for a phone I do not have, and I will not settle for anything less than an iPhone XR, the agent will ask you to hold, and then they drop the call without assisting you. It has been 6 days now without getting a resolution. The staff at the Mall of Africa, Patwin, and Musa, and all the others are still very unhelpful, and the Regional manager Millicent Mnisi does not seem to know how to treat a customer as well, because till this very day I don't get feedback from them. I am the one who has to call the store only to be told that Millicent is still checking. I think at this stage she should be communicating directly with me in order to resolve this. I am a very helpless customer right now. I don't miss any payments to Cell C, but it is clear that being a loyal customer to them means absolutely nothing.