Struggling to cancel m contract

I called vodacom the 6th August to cancel 2 contract numbers. I called again on the 19th August 2025 to make sure the numbers would be canceled. The lady confirmed it will be canceled. I got my statement yesterday anad to my surprise, I am still being billed. I called in this morning, and the lady said someone might have messed up the cancellation. So she put me through to cancellations but the call cut. I want my services cancelled. And i want a copy of my call recordings