Vodacom Cellphone Contract Cancellation that was not cancelled

I cancelled a phone contract with Vodacom end of March 2022. It was never cancelled. I only realised that in August 2022. Vodacom informed me that since my account is in arrears, (with 4 days, as I phoned them on the 4th of August), I have to pay my account before they can submit a contract cancellation, again. They can see on the system that I requested a cancellation 5 months earlier, but it was never done. I paid my account and contacted them again, where they then went and cancelled the wrong phone contract. I phoned them again, they fixed that, after I spend more than an hour on the phone with them that day. That is an hour wasted out of my day. They then submitted a refund request to their headoffice that I was informed, normally takes 2 working days. It is now almost 2 weeks later and still I have not heard back from Vodacom. I sent them an email requesting the recorded audio etc. with my complaint, no response. All I want is a refund on my contract that was never cancelled.