Humiliation of a Customer by Pick n Pay Sanbel

On Fri, 06/11/15 at 17:45, I joined the Express Queue at Sanbel's Pick n Pay (shop regularly) after filling my basket with what was needed. There are 3 Till Points but only 1 was occupied by a Cashier with about 10-12 people waiting. I then approached Sophia who was having a casual chat with her colleagues & asked her if I should help her out, her response was \why must you say that