vodacom

I have 45 vodacom data contracts of which 3 expired and I was billed on a month to month basis, when i realised that the expiery of the contact does not also mean cancellation i contacted Vodacom to cancel them, i had to contact the 4 month in a row, andall my calls for canellation was ended with someone will phone you to finalise the cancellation, well its no suprise that no one ever phone and i kept on paying the account up to the end of Nov 2020, the 11th of December 2020 i sent an email to customer care to inform them that i will not make any further payments on those contracts and if they load any data on the sim it will be for their account.Still no reaction.I kept on pying the 4th current contact that will exoire 20/02/2021 but now Vodacom has blocked that number because of non payment of the other 3, I have been phoning and getting no assistance the other expired contracts have still not been cancelled. I do not know what to do as Vodacom just ignores the cancellation requests