Big ********

Mr Price Mobile is a ****. I took out a contract of R79/pm for 2 years. At the beginning of this year I started getting data/airtime purchases on my Mr Price store card. I went to the store to query this as I've never purchased any airtime or data because the sim card was not even in use. I went to the store several times and they only managed to take this off my store account in May and they told me they disabled the function and sim card cancelled. Fast forward to August they debited R549 instead of R79, I reversed and stopped the debit order as I could not get this resolved. They told me this was the amount of data or airtime I used, mind you the sim card was not in use from last year till to date. I got endless phone calls after that from their call center. On 11/11/2020 I decided to settle this and move on and I told them I want the contract cancelled. They told me to pay an amount of R788 and send proof of payment for the contract to be cancelled. I did that the same day, guess what response I got from them. They responded saying that the sim card will be changed from contract to prepaid on the 31st of December, and I will still be liable for payments of November and December invoices. This is a sim card I cancelled long time ago. Even if you call it you don't reach it. How does it incur costs?