VODACOM DON'T CARE ATTITUDE

I ported my number from Cell C back to Vodacom BACK IN Aug 2014. Since then I can't receive calls or sms from any MTN network number. I can call MTN but MTN cant call me. \the number you have called does not exist". Since Aug'14 I have tried to get this issue resolved via Vodacom's useless call centre and going into Vodashops. No one has ever come back to me and no one has ever been able to resolve the issue. At some stage Vodacom told me to contact MTN. How is that for pathetic service! I am a Vodacom client but they tell me to contact MTN?????? Obviously MTN can' help me with a Vodacom number. Issue still not resolved. Pathetic!"""