Terrible Experience via Onilne Upgrade Site

I app**** for a Online Upgrade to a S7 Edge about a week ago, I was then contacted and details were confirmed. Upon delivery of the phone, I noticed it to be a S7 which at the time cost less than the S7 Edge on the website. I then phoned the call center and informed them of this. I was told that they forgot to tell me this phone deal has been discontinued. So they merely it took upon themselves to send me the cheaper S7 model at the same price as the S7 Edge Model contract price. I was told that the phone would be collected and that it would take a whole month before I can reapply for another phone instead of just changing to another model of phone. I phoned the call center again this morning to find out what was happening as the phone had not been collected. I was then informed that they knowingly changed my order from a S7 Edge to a S7 without my consent. The collection of the phone was not scheduled either. I'm well aware of the 14 day cool off period. Was the online consultant hoping this period would lapse and then I'm stuck with a lower model phone at the higher monthly cost?? Is this because they work for commission?? I have now been charged for this phone and the 10gbs of data and all the other costs. Apparently I have to wait an entire month before I can apply for an upgrade again, my contract finishes in Dec, so I will need to reapply entirely again. The fact that the first consultant never even lodged a action on your system to collect the phone has made me think of leaving vodacom completely. I have been a customer for many many years. This sort of conduct leaves a bad taste in my mouth.