Terrible service online support

I ordered a phone on my existing contract Tuesday 14/08 online. Next day they phoned me to confirm, said it was approved and it will be sent withing 3working days. Today 17/08 I phoned to follow up. The consultant said that there is no orders done so there is nothing on the system. I phoned twice to make sure. Then when I asked the male consultant he said I should wait for someone to phone me to confirm the order. I told him that I already confirmed. He said we'll he can't help me. I'm going away next week Tuesday for 2weeks and need the phone for business. I am really upset as I am still waiting for someone to phone me. I want the phone on Monday else I will cancel all of my contracts with Vodacom. I will even collect the phone in Jhb or pta. Please assist me as the online department is so unhelpful.