Very Unreliable and Poor Service from Vodacom

Last Year i had app**** for LTE modem with 2 VOIP lines. It took them 2 months to get it up and running. then there were problems with their public EFT payment, no manager assigned to mt contract and no body knew what my account number was. Spend day and nights on their call-center lines trying to resolve these issues and no one seemed to care. Now 5 weeks back i send mail to their support team to port my lines and add extra 3 lines and 2 weeks later no response, then i called again and Spoke to the lady by the name of Nokuthula Baduza. She told me after a year that my account manager is Bonke Makaula and she forwarded me his email address and telephone line. I have sent 4 emails already no response and i have copied Nokuthula Baduza again on the mails but the are all avoiding me. I have tried phoning the numbers she gave me and they just ring and no answer.

I have just started a new business and rely on these phones, we have been stuck for 6 weeks. Can some one help me please, MTN , Telkom, Cell C so that i can cancel this nonsense contract please