Bad service and broken products

I called the Vodacom call centre they cut un-blacklist my cell phone the call center send me to branch and the branch send me to call centre it's been 4 months that I'm paying Vodacom for a blacklisted cell phone. No one can tell me why Vodacom blacklisted my phone San and his manger at the store are very unhelpful. I won't my contract cancelled or a new cell phone. The call centre can't help because they say I never used my sim card in the new phone witch is true cos the phone was given to me broken or blacklisted <br> This is my second report and they still never responded to the last one I have to stay out of work to come to the southgate Vodacom shop and still leav unhappy. Please Vodacom tell me why u blacklisted my cell phone that you gave me