Personal questions to confirm ID

I today phoned Vodacom customer service on 111 for an upgrade date. My voice password verification was successful. I got put through to upgrades by customer service. They now AGAIN want to verify after I was told by customer service that they can see my voice verified.<br> <br> They apparently get their info from ITC. They asked me very personal and very un-relevant questions like \how many properties I have". I feel that to be totally non-relevant. I was told then they are unable to proceed.<br> <br> This to get a simple upgrade date on 1 of 7 or 8 accounts????? <br> <br> I again phone 111 customer services. A gentleman there assisted me and also escalated my complaint. <br> <br> Let us see how important Vodacom's customers to them. <br> <br> Maybe it is time for a change"