Rude tele-marketing call

I just received of of those calls where the operator read their little m****cript regarding a new service that would reduce my existing monthly data cost because Vodacom has reduced the data cost (which sounds nice) The lady very quickly proceeded to ask for my delivery address without explaining what it was that they needed to deliver and without confirming what contract/service of mine she was phoning about.

I politely asked her to confirm what contract it was, she couldn't. I again asked if she can confirm what my telephone number was, to which she said she was not at liberty (even though she just phoned me on that number) and eventually I told her that I wont confirm any details to a strange call if she cant confirm my details first (since she phoned me) so I told her that I would be willing to go into the Vodashop and find out what they need from me to reduce my bill since this call wouldnt be able to do the job.

Then she very rudely rep**** " You do that. You go into the Vodashop" and put the phone down.