Terrible customer service

Tuesday I was at pick n pay golden walk purchasing some lunch it was around 12:30 in the afternoon. Just when I get to Point of sale I was served by Yolanda forgot her surname, I waited for like 15 minutes in the que meanwhile I was in front she was dealing with other customer she didn't even have decent to inform I as the customer since I was alone in line to pay to her that she is experiencing a problem with her machine she just said nothing until the matter was solved with the customer that was paying, after I was next to pay and she didn't even greet or apologize for the wait she just scanned my items and said "plastic" and told me my amount and I paid and left. I was ****ed off at the level of service at pick n pay Golden walk your staff needs training on customer services they lack in it. They don't know how to serve a customer and they have attitude.