MTN **** to me

My name is Sikhumbuzo Ndaba cell number ***. My contract with MTN ended on the 3rd December 2021. So i could not upgrade because MTN told me they didn’t have iPhones so I waited on my upgrade. My contract went onto month to month basis because I was waiting for the availability of the iPhones. On the 14 February 2022 MTN called me about my contract they wanted to upgrade me onto a new package I told them that I’m still waiting for iPhone. I was told that they will upgrade me onto a new package but as soon as iPhone became available I can add on my current package because they didn’t know when the iPhones will because available. So the upgrade was done. Now iPhone s are available I went to the MTN shop to my surprise I was told that I recently upgraded on my contract I have to wait for 2 years before I can upgrade. The guy at the shop told me that they **** to me there is no such a thing as to add on later. So MTN **** to me. I want them to fix that. I want my upgrade to proceed as per agreement otherwise I want to cancel this current upgrade because I was cheated on. They don’t deserve even a single star