Unacceptable lack of service from Vodacom cancellations

Once again I have had to resort to naming and shaming on a Social media platform for the ridiculous service or should I rather say the lack of service that I have received from Vodacom cancellations department. I phoned on 27-06-2021 to cancel my deceased mothers contract - it wasn't cancelled I phoned on 6-07-2021 spoke to Leroy at 11:46 to cancel the same contract - it wasn't cancelled I phoned on 17-08-2021 spoke to I think it was Mike at 12:31 to cancel contract - it wasn't cancelled I phoned in utter desperation on 8-09-2021 again requesting that my contract be cancelled, explained my dilemma to Jasper at 10:45 and he assured me that he was cancelling the contract with immediate effect and apologised for the inconvenience. Please feel free to extract any of these calls to confirm that I am not lying to you. I once again tried calling the cancellation department today at 16:18 - had the phone put down in my ear. I attempted to phone them again at 16:20 - had the phone put down on me. So now I am asking with tears in my eyes what do I need to do to get a contract cancelled at Vodacom? I cannot go on like this, they are quick to take my money at the end of every month that they don't have a problem doing but cancelling a contract is another matter all together. So, basically I have been battling for 3 months and 3 days to get a contract that is not being used that costs me over R300 p/m cancelled. I want a refund from Vodacom for these 3 months and I want them to cancel the said contract with immediate effect.