Vodacom non service in upgrade

I wanted to do an upgrade and went to the istore on 2 November. They could not complete the upgrade due to a finance box not ticked on my profile. A call was logged to fix this error. I was told it should not take more than 24 hours. On 3 November I phoned Vodacom to follow up on this request, but was told it can take up to 48 hours to tick the finance box. I followed up again with Vodacom on 4 November and was told it could take up to 72 hours to finalise my request. I phone Vodacom again on 6 November and was told it could take up to 7 working days to finalise my request. Another call was made by me on 7 November and I found a helpful call centre lady at last. She rushed it through the system, and the request was finalised within 2 hours. I went back to istore to complete my upgrade, but was told the deal that I wanted was no longer available as Vodacom deals changed on 6 November. Long story short - I am still without a upgraded phone! I have had the most disgutful service ever from Vodacom and are beyond angry that I cannot upgrade to the package I wanted!! If Vodacom did what they had to do within 24 hours the deal could have been finalised!!