Incomplete Upgrade!

I recently received a phone and SIM card meant to be my upgrade phone, but Vodacom erroneously opened a new contract instead of actually just upgrading my number. I took this up with a consultant and was told the new contract would be cancelled and a new upgrade phone would be sent to me. I received this phone but minus a SIM card. I still have the previous SIM card sent to me, and tried to do a SIM swap, but with no response. Also, while waiting for my new SIM card, Vodacom decided to deactivate my old SIM card! So now I am stuck with no communication whatsoever - this has been going on like this for 2 weeks, with very little assistance from Vodacom. I need my original phone number for business purposes, as well as already having had my monthly contract instalment deducted - which I currently can't use! This is absolutely unacceptable and I receive absolutely no help from Vodacom, or their consultants just make things worse. Terrible customer service! I am still waiting for my upgrade contract to be activated now.