Pick N Pay Rude Cashiers

I have been turned down 3 times trying to withdraw cash at Pick N Pay (Kwazikode in Orlando East Soweto). I went there again today and told they won't withdrew for me because I didn't greet the cashier. Tyme bank has lost one client as for Pick N Pay outlet, I won't e making my way there anymore. I stand with some members who decided long to buy from the outlet. Can't take us for granted like that! Why would I be refused to withdraw money at a till whereas you advise us to withdraw there because first of all Tyme bank doesn't have ATM'S?