Vodacom service and lies just getting worse

So last year me and Vodacom had many chats with regards to active contracts and upgrades just to find out they **** to me again two of the 3 contracts are not still valid and one is already over and on monthly billing since 2022/10 2nd one went off on 2023 /11, now I have on every occasion last year asked them to confirm that all my contracts remaining is valid till march of 2024 and that the one that ended in 2022 was indeed cancelled , hence it will only be fair if Vodacom refunds me for the monthly bill on the old contract as I had no use of it and they didn't do their job ...Vodacom worst service ever received and just keeps getting worse