CANT TERMINATE A CONTRACT THAT HAS REACHED THE END

I have been trying to call MTN vor the last two months with no success. The moment you call they ask if you would like to speak to a consultant, then you hold for several minutes and then the line gets disrupted. Now I am sitting with a contract that should have been terminated BUT they are still running it and charging me ridiculous amounts. For the past two months I paid over 9 grand just for this stupid contract. <br> <br> When I went to MTN in Menlyn they told me that to ask that they end the contract I need to call the call centre even though I expressed that the call centre doesnt work