Contract top up updating delivery address nightmare

I took out a top up contract with vodacom. Biggest mistake ever, the same day I did the upgrade I asked what my delivery address is on their system and when they told me, I said its incorrect and gave the correct address. I was told I will receive my phone in 3 - 5 working days, I phoned the courier on day 5 to ask where is my phone and they advised they are waiting for the updated address. When I phoned vodacom they said I must wait another 2 working days just to update my delivery address which I have given them 4 times already. When I ask to speak to a manager I get told that one will phone me but no-one has contacted me