Vodacom refuses to cancel contract and keeps billing us!

I called Vodacom contracts cancelation department on the 11th of July 2025 to cancel VIP Red contracts that came to the end of the contract period and move them to pay as you go. The lady at the contracts department was adamant that we do not cancel our contracts as we have been loyal customers for +/-20years on these packages. I told her to cancel the contracts multiple times, but she was adamant the we move to a month to month. She offered to move us to a month to month package instead of moving over to pay as you go. We gladly excepted this as the amounts were about R595.00pm instead of over R2000.00pm for each package Then by surprise we are still receiving the same bills of over R2000.00 per contract and Vodacom has now cut one of the lines and it has moved to legal department. We phoned them on the 8th of October 2025 to solve this, the lady that assisted us said that they need to get the recording and will contact us in 48 hours. It is now Monday the 13th of October and we are now holding on the line for almost 40minutes and have been moved from one department to another