Worst service ever

I requested a number on my contract to be cancelled due to the fact that I have not used in the last 30 months. I could not cancel the contract as the cost was enormous. I have been trying from 2 June 2024 and 8 frustrating calls to the call center without cancelling the number. But 3 of my other numbers are upgrade without my consent. I have been a customer of Vodacom since the company opened. I am now going to go to a different supplier for this type of service is the worst I ever got from Vodacom