Complete don't care attitude

I signed up for a new contract with Vodacom and app**** to have my number ported from Cell C. This was approved over 2 weeks ago with a new sim card being delivered. However, the number has still not being ported even though I was promised it will be done 2 weeks ago. I have tried numerous times calling the call centre and have waited on average for 30 minutes with no one answering the call. I tried sending emails as well as using their online chat channels but no response at all. It would appear that as long as they have made the sale, they do not care at all about their new customer.