Bad customer service Clearwater Mall

I went to pick n Pay Clearwater Mall to draw R500 cash that was sent to me from Investec. When I got to pick n pay the lady at the till told me that she doesn't have cash she will find someone to assist me. She sent me to this lady and I told her I need to draw and she asked me how I showed her an sms and she asked me how do I draw I told her I don't know but last time I was helped with the same sms. She kept going to the system and told me it doesn't work I must call the sender and ask him how he sent the money I told her via Investec and she said it doesn't work. I asked to see the supervisor she told me she was the supervisor she was the head of pick n pay clearwater and no one else could assist me besides her. I knew she was lying and she didn't want anyone else to help her as she is the supervisor and she is suppose to know so we waited there and she told us there was nothing she could do. She was rude and uninterested in helping us and she acted like we were not there. She refused to give us a name and all she kept saying was that she was the supervisor. Seeing that we were there for long and we were not getting help the 1st lady who said she doesn't have cash called us and suprisingly she was able to help us without any questions and without us having to call the person who sent the money. I found her attitude very disturbing seeing that she is a supervisor but she knows nothing about customer service. I am really disgusted by her service. Her name is Abi or something as all the staff refused to give her name