*********** or just lazy?

I visited the Telkom shop in East Rand Mall this afternoon around 14h00 to upgrade my 20GB LTE plan to the uncapped LTE plan, which is the July deal of the month. I spoke to a consultant and he told me that I needed proof of residence to process the upgrade. I returned again at 17h30 with my proof of residence, but the consultant that assisted me earlier was not around. Another consultant, who was sitting behind the counter doing nothing, told me that the deal of the month was only for new customers and that I could not upgrade. I have since read the Ts&Cs and what the consultant told me was total nonsense. This is either total incompetence or super laziness. I can only assume that he was not in the mood to process my application at 17h30 in the afternoon and did his best to get me out of the shop so that they could leisurely prepare for closing time at 18h00.