Lack of product knowledge

I went to MTN Maponya mall as I was interested in the advertised data sim deal 200G for R299. Upon arrival I ask the ladies at the door about it. They advise me to wait in the queue. I asked them if they can check for me rather than waiting in the queue only to find that it is not available. The lady asks 1 of the colleagues and comes back advising that I join the queue I will be assisted

I get to a consultant. I ask about the deal as in store they have it but it’s advertised with a home router which I am not interested in but a pocket router instead. He goes fetches their catalogue browses thought it got for a while he asks for assistance. The other 2 colleagues ask hun why is he not asking for help if he doesn’t know what he is looking for. He shows me a spreadsheet of the sim deals that they have. Eventually I go online and show him what I’m speaking about. He says “it is probably an online deal, maybe it is online” I confirm the probably part. I don’t understand how your Staff wouldn’t know about a deal that it advertised on National TV and radio. He then takes my phone goes to another colleague and some a back to show me another spreadsheet and he was clueless, impatient and almost rude. His surname is Tladi which I had to ask for (not sure if they not suppose to have name tags). I left Maponya MTN store without being assured or provided with information as I was told about probably and maybe. I am a dissatisfied potential client. Please do better especially around product knowledge. I wasted about over 30 minutes of my time when I could have just been told when I inquired at the door that it is only an online big in store deal