Worst service experienced.

First I was approached by Mondo by telephone to do my upgrade, they did not mention they were from Mondo, and gave false information, like I can immediately go to my nearest store and collect the phone, which was false. then after that I waited more than a week for any response and got nowhere. so I canceled that request to which I found out that I was actually dealing with Mondo not with my service provider. Then after this The stores is my vicinity did not have the phone I wanted in stock, and they stopped making the phone because of the global chip shortage. After this Mondo approached me again, And I specifically asked the consultant to give me a estimate of days this phone can be delivered, He guaranteed me that it should not take more than 7 days, and I asked him multiple times if he is sure he has the correct phone model to send me, which he said he did. Halfway through the upgrade, the call got dropped. after a day I phoned to see if the upgrade did go through, because I was not contacted again, by which Mondo said there is nothing on their logs, so the upgrade was not complete. a few days later, I get a call from DSV saying They will be delivering a parcel for me the next day, The package got delivered and it was the wrong phone. had to take it back instore, like a Mondo consultant said, but the franchise of the service provider said it does not work like that , had to get the courier company to collect and send it back after a lengthy call with Mondo. The phone has been received at the warehouse, but the phone is still on my name, and I was told to do an early upgrade by Mondo, but that is again not correct according to the instore consultant. Now I am stuck between cancelling the phone of of my name, I have been told multiple times that it is being canceled and not seeing any progress. I have waisted of R300 petrol driving to MTN stores, and over R60 phone bill trying to sort out Mondo's mess. No pleasant service at all.