5 days already with no service from MTN

In July I was due for an upgrade. MTN did not stock the Note4 and said they had no future plans to do so as Vodacom had exclusive rights. I asked them to cancel my contract when it came to an end in October. In September however they brought out the Edge Plus and I went to the store and upgraded my contract. On 1 November the system cancelled my contract due to my initial request as the systems are not talking to each other and could not distinguish that I had already upgraded my contract in the meantime. After 5 days of speaking to various *********** staff at MTN that could not figure out why this happened, who had done it, how it can be fixed I at long last found a manager who tried to assist me and after 3 days my services were restored on system but I still cannot use my phone as I now get a RICA barred error which MTN cannot resolve even after I have called them three times. I have been sent from pillar to post and still I am without service. Having seen how MTN deals with complaints and their attitude and inability to resolve issues have made me realise why I need to never do business with them again. It is worth looking into Cell C contract buy out.