Vodacom Fish Hoek - shocking service

The shoddy, "slapgat" service that I received at on 7 December 2017 at Vodacom Fish Hoek is just too much. I went in to do a SIM swop and was told I needed proof of residence. So I drew a statement, for which I was charged (the man who "helped" me at Vodacom said it "should" be okay). I went back and was bounced from one person to the next, and had to keep asking who was helping me as they would just get up to do something else. They were totally taken up by their own conversations and barely registered that they were dealing with a customer. And of course no one checked my proof of residence to which I asked why. All I got was defensive, baseless arguments - they knew they were wrong but there was no admission that they were wrong. The woman (who was particularly rude, dismissive and illogical) said she'd checked my ID and apparently I didn't need proof of residence - but why then did the initial person who served me simply assume I needed proof of residence and not check first? My point is: why is there no procedure for this sort of thing? And are your ********, arrogant staff trained in customer care at all?