Premature upgrade

I have 3 contracts with Vodacom that I pay, all amounting to R3500+, my own number is more that R1500 per month. I phoned Vodacom at 12:25 approximately and was told by a VERY RUDE consultant that you may NOT upgrade prematurely.<br> I have done this before and why not now? I feel I pay a LOT of money on phones and need them to keep in touch with clients, that's obvious! One agent tells me that I can and the other one says no, you may not.<br> Can someone, who can actually speak AFRIKAANS phone me and discuss this pathetic service and WHY I am not allowed to upgrade. <br> Never have I had THIS bad service from Vodacom, that is WHY I am with Vodacom and no other service provider. <br> Please assist me?