********** contract sold to me

At the start of last month(september) i upgraded my cellphone contract to a data contract with a home router. After the setvice wasn't activated for more than a week i contacted them and was told i had to wait till the end of my contract term that is on the 9th of October 2021. On the 9th my service was still npt working and i was told on the 10th it would work. I called them again after the service was still not working and was told to call back monday. I called and was still not assisted and was told to do a sim swap. I went to the cell c retail store in eastgate where i found out that my contract was not the uncapt one i had requested and that the sim card i was sent did not match the one linked to my contract. An investigation was dome and it was closed without any feedback. I have no idea where ro go from here as the management in the call center is not willing to talk to me.