MTN and it's 3rd Party Mondo is ****ming me

MTN and it's 3rd Party Mondo is ****ming me. They are debiting me for a device I don't have

In November 2025, I was due for my MTN upgrade as per the norm I requested for an upgrade online. I was called and completed the necessary details of choosing a device and confirming address. I chose a black Friday deal of Samsung A36 that came with Galaxy buds. The "MTN" consultant did not confirm or make me away that they are actually not from MTN but from Mondo. The device was delivered to me on the 13th of November 2025, the device was delivered by DSV to me. Upon receiving the device, I noticed that it did not have the Samsung Galaxy buds. I phoned MTN to ask and that's when they made me aware that I have completed my upgrade with Mondo who is their 3rd Party. I contacted Mondo to ask for the Galaxy buds and they said they don't have them. I therefore requested for an upgrade reversal because I was not willing to pay R487 for a device only. They told me to return the device to any nearby MTN store. On the same day (13th Nov 25) I returned the device to MTN Mall of the South and they completed everything for me. I then sent Mondo the IRSM number and started the reversal process. Since the 13th of November 2025, the reversal has been in progress and Mondo is giving me the run around, sending me pillar to post to complete this. To top it all, I'm being debited for this device I don't have. Dec and Jan I was debited and I'm pretty sure in Feb as well because they have still not completed it. I'm not a client of Mondo, I am a client of MTN. My please is for MTN to retrieve my contact from Mondo and give me a device so I can pay for something I have. The MTN app says I have a Samsung A36 active contract but I no longer have that device, it's not with me. So MTN, please intervene because I'm your client and not Mondo. Retrieve my contract or assist with Mondo to cancel my upgrade so I can get a new device with you.