Terrible service Vodacom Upgrade your contract if you request a cancellation

My husband WAJC Oosthuizen ID *** cell ***, cancelled his contract with Vodacom last year. Cannot remember the month but think it was June 2024. Since January we receive calls from VVM debt collector for outstanding amount on the account. I phoned Vodacom and the lady told me the contract was upgraded and not cancelled. Which is NOT what we did. I spoke to Nosipho in cancellations and she said she will investigate and let me know. NOTHING happened!!!!! Spoke to Luzanda at cancellations yesterday, very friendly and wanted to help but could not as it was already with VVM. Put me through to a Linhle who told me cancellations dept must do the investigation. I GIVE UP. NO ONE CAN HELP ME and VVM phones us 100 times a day. PLEASE HELP and cancel the contact!!!!!!!!!!!!!!!!. I MM Oosthuizen iD *** cell *** a client for almost 40 yrs with Vodacom but Iam not sure now if I want to be with Vodacom anymore. There consultants do not listen properly and asked the same things over and over. An urgent investigation and reply will be appreciated. Be blessed.