MTN contract - faulty

I opened a new line for a contract in February 2023 at Istore in Canal Walk. To my knowledge it was supposed to be 24 months, after about 4 weeks, I finally got an email that it’s ready. However, just when I was about to sign it was loaded as 36 months. I asked for 24 months. There was a back and forth communication trail that the contract needs to be cancelled and MTN isn’t always keen. However, it has been so long and still no outcome. My phone number has already been ported so I don’t have any connection unless I’m connected to WiFi. And to top it off, the amount for the contract has been off for the past two months (as per the 36 month). Please rectify this as I am utterly disappointed in this atrocious service.