Disgusting Customer Service

My contract is up for an upgrade on the 11th of March 2023. I phoned on the 31st of January and spone to Nivashan from the call centre. He laughed at me and said , do you understand that you must give one months notice, therefore you must call on the 11th of February. I called on the 11th(a Saturday) , and was told by Nothando, that the retention department only operates from Monday to Fridays from 8am to 4.30pm. I must call on Monday. I called yesterday at 8am, and spoke to 5 different call centre agents, all asked me the security questions and put me on hold, which went back to the queing system . After 30 minutes of holding the phone line drops dead. I spent the whole of Monday calling with no assistance . My final call at 4.42pm was with Lee-Ann from the sales department. She said that she will email all the managers and get someone to call me. No one called. I phoned again this morning 14th February 2023 at 9.45am, the male call centre agent transfeered my call to retentions, I held on and on and on ... no answer. I am utterly disgusted at MTN`s poor service and the agents calling themselves MTN Champions are definetely not interested in helping the clients. I will never take another contract with MTN and will never encourage anyone as their customer service is nothing but a joke. I am still waiting for the manager to call. My ID is ***, if they are interested , they will retrieve my cell number from my ID and call.