Two months no resolution(MTN & Mobile plus)

A month ago I had this annoying, persistent women calling me at my office, insisting I upgrade my contract. After numerous calls she managed to catch me off guard and did the upgrade for me over the phone. I realized that the package she offered me was not what I wanted and I cancelled the upgrade on the same day. I called mobile plus before the end of the day to confirm the cancellation and all was cancelled according to them. I received an SMS advising me days later the my contract was upgraded and welcome to the MTN family. When I called Mobile plus they advised that the upgrade was cancelled on their system and MTN needed to cancel the upgrade on their system. After going back and forth for months, I am now told almost two months later that Channel Queries needed to confirm that the package had reached the warehouse, basically for two months my new phone is lying somewhere and no one can account for. I am now going to pay for something that I do not have. I am frustrated as no one seems to see this as a matter of urgency. Mobile Plus offers pathetic service and have a bunch of idiots working for them. MTN being such a big enterprise should not allow the pathetic companies to market for them and they should assist us in resolving our issues. I hope my review gets me some assistance.