New Sim not working

I ported to Vodacom in Canal walk Thursday 15th October. Since then no one could get hold of me. All calls went straight to voicemail. When i wanted to load airtime onto my phone it gave me an error message saying Im not permitted to do so. I then phoned customer care. the first consultant put the phone down in my ear. i the phoned again and got to another consultant whom was very helpful. She then told me i was blocked from loading any airtime onto my phone and all my incoming calls where diverted to my voicemail. This to me was and still is unprofessional and unacceptable.<br> <br> I would like to know the reason for this. And how something like that can happen.