Overcharged - Check your accounts

I upgraded in October. The person I spoke to said my account would be going up to R1399.00 All previous times I have upgraded, I was given the VAT inclusive figure, afterall that is the legal requirement. This would include 2GB of DATA, 800 free minutes and unlimited sms's. Vodacom sent me the phone but did not have the common decency to send a sim with it. Nevertheless, yesterday I received my first account..... R1744.22 Inclusive of VAT. The account also showed lots of debits and credits and Im sure that was done to confuse the consumer. The account also showed I was being charged for Upgrade admin (yet it was done telephonic), it showed they giving me 5GIG free over and above the 2GB of the contract. I told them I never asked for it so they must take it off, just give me what was committed to me, nothing more and nothing less. I cannot make use of the 5GB so its a waste. I would gladly welcome extra airtime, but ofcourse that they wont give. I spoke to a consultant and told him I would NOT be paying the R1744 and I want an updated invoice as there were figures that needed to be waivered. Also charges of Vodacom to Vodacom when I know I did not exceed my airtime. My account is on Debit order and Vodacom better not deduct the R1744!!! I WANT AN UPDATED INVOICE!!