MTN does care about its client

I am tired of MTN, regretting the day I took phone contract with them. I took cell phone and wi-fi contracts and my contract was expiring February 2021. My wi-fi contracts was upgraded **********ly in November 2020 in durban mhlanga and I am based in nelspruit mpumalanga. I discovered in january 2021 that my wi-fi router contract was upgraded with sumsang note 20 because of high bill than what i normally pay. I reported the matter to MTN shop at riverside mall and they advise me to get affidavit and give the copy of my ID to log a call for me with their ***** department. I submitted the required documents same day, that was 16 January 2021. I was promised that call will be resolved in 21 days, upon making follow up after 3 weeks of logging a calls, there was no progress on my call. They only showed me the copy of ********** I'd copies used to upgraded my phone at their MTN outlet in durban kwa mhlanga. They confirmed that no contract was attached to the package but they cant help me as only ***** department can resolve the matter. I called mtn call center several times told different stories, my ref couldnt be found, different agent logging different calls withouth resolving my issue. Riverside mall in nelspruit told me there is nothing they can do to assist me. I went to MTN at absa square in nelspruit in march 2021 and I was told that the call was logged wrongly and they assisted me to log a new call. To date the call is not resolved and I am losing my credit score because I stopped paying MTN for ********** account after writting to them several emails on top of call to customer care line. They never border to respond to my email. I wont advise anyone to use MTN, they dont take their client serious