Pending upgrade reversal - no feedback for past 3 months

Unacceptably poor service... I app**** for an upgrade with the online team on 18 March 2022. My new phone was supposed to be delivered on the 1st of April, however the courier company delivered it to an anonymous 3rd party without my permission, resulting in *****. After informing MTN of this, they requested me to get an affidavit from the police and send it through to them, which I did in April already. Since then I have been calling more than 30 times in the past 3 months. They keep on telling me that they have cancelled the upgrade, but it is not reversed as yet. Meanwhile I am paying for a device that I don't have and am unable to upgrade due to the open order. Every time I speak to someone, I have to repeat the same story, just to get the same answer: "We will get back to you..." It has now been 3 months and absolutely no one from MTN has gotten back to me. I send a complaint to their complaints department, who also didn't ever bother to get back to me, I even tried e-mailing their CEO, who couldn't care less. My phone got ****** yesterday, and guess what, I can't ever do a sim swap, due to the open and pending order request. Now I have no phone, no number and no way to get this fixed...