********** Behavior from MTN

I have been an MTN customer for years and I am shocked to find myself in this position. MTN called me to enter into a subsequent contract, I was assured that the contract allows for me to upgrade and get a new device when I need to. I was also told that if I do not agree to this my number will stop working. All of this was on the phone. I now would like to upgrade and Im told stories, they will not allow me to until 24 months have passed. At an MTN shop, I was told that sales staff on the phone often mislead and lie to customers to conclude a sale, chasing commission. When calling the call centre for answers, I was given 3 different numbers to call and no one is willing to retrieve the recording of the call where I was **** to by MTN sales staff. This is disgusting!!! Im not asking for anything for free, I need a new phone and was actually trying to pay MTN more money for this. NO MORE!!! I bet Vodacom would be much better