shocking treatment of staff member

They hired a waitress who had to work for her first three days for free, over a busy weekend. After the three days of grueling work, she came back on day four, (transport costs money) to start her actual pay earning day and informed her she is no longer wanted. She demanded to know the reason. The Manager there, a Charmaine, would not give the waitress a valid reason or any reason. They could have done this on day three at the end of her shift. I have heard similar reports from other people about the underhanded use of free labour at this restaurant. Its absolutely shocking that they could treat a single mother in this way. I hope she takes them to the CCMA.