MTN took my money and is insisting on not paying it back

MTN has been nothing but disrespectful and unhelpful to me since I took a month to month contract with them. So on the 28th of August I decided to take the contract online and I paid R1127. They then proceeded to debit the same amount from my account on the 7th of September 2024. After speaking to one of the customer service agents, they asked me to send an email with my bank statement and proof of payment. I then told them that I didn’t have the proof of payment outside the bank statement. They then told me they would contact their banking department. This went on for an entire month and I didn’t receive any feedback. Then I messaged them again on X and they told me that the proof of payment should have been from paygate. I found it and then once again I sent it to them. I waited another month and still no assistance. Then in November I ask them and they say that the R1127 was allocated on the 7th of September, at which point I inform them that that was the debit order and not the money I paid on the 28th of August. So I send them the proof of payment and this absolutely rude agent says to me and I quote “ Please note the above is an informed conclusion. MS”. I don’t know if this is the standard that MTN has set for itself but I wish I’d known before taking this already expensive and wholly WiFi. Anyway I will not rest until I get my money back. This is actually theft at this point. I even have the email address of the person that paygate sent the payment confirmation too. Utterly disappointed.