Horrible service once again

Vodacoms service just gets worse and worse every time I speak to them. I have had a old phone blacklisted around Feb/March this year. Now my phone is up for and upgrade, I was told that I cannot upgrade because the blacklisting is blocking the account. I August 2023 I was told that an incident is logged and will be resolved in 2 days. Never heard from them. Called in again, was told that they will have to get the person who loged the bkacklisting to remove it and assure me it will be done in 72 hours. Never happened. (I wonder what would happen if that indiviual had left the employ of Vodacom). Called in again, got the same story, never heard back. Called again, got the same story but this time I received an sms from Vodacom confirming that it was removed. IT WASNT as I tried upgrading again. They then said that will log it and it will be done by the manager who never returned my calls. Still not done. It is now November and the issue is still not sorted out. Spoke to a manager Jamie on Sunday, assured me that he loged another incident with ref EC-1MF5-1JDUAJ and will get back to me by latest Tuesday 5pm. I then got a call between 11:30 and 12 pm by a lady saying that she cannot help me and should call customer care. This shocked me that a business has time to contact customers telling them they can't be helped neither can she get any assistance and annot get the correct people to assist me. I then requested to speak to a manager of which I received a Qiniso Mhlambo. I cant believe the level of people working at Vodacom. She was a broken record saying she cannot help me and I should call customer care. I explained I have already done that on numerous occasions abd the matter is not resolved to date. I now demanded that she gets the correct people to assist as she is in the same organization. Refused point blank to assist even after mentioning that I am now going to lay a formal complain. I eventually cut the call because she was just frustrating the hell out of me. I then contacted vidacom again, spoke to a lovely lady called Amy who took the time to hear my frustrations and explained once again that she has to get the person who loged the blacklisting to remove it. She called me back in the evening around 19:35 and assured me that it will be removed in 72 hours and was sent to the person who assisted with the blacklisting. Hope it happens this time around.