Staff needs customer service training

I visited Ackermans Gugulethu Mall on Sunday 04 Feb as I had to exchange my daughters school shoe to a bigger size. As someone who has worked in the customer service industry almost all my life I always expect to be treated the same way I would treat a customer. There were 2 cashiers servicing us, one was wearing her name tag (Ondela) and the other lady wasn't. The supervisor i assume Mr Zulu also had his name tag on. The one that was not wearing her name tag (Zintle Mapempeni - Took it from the slip as she assisted me) was chewing gum while assisting clients, she was busy sending a voice note on her personal phone while she had a customer infront of her, she was resting on the counter instead of standing up straight, absolutely no smile and all this on a Sunday morning. What sort of training does Ackermans give their staff especially working for the frontline? Please send her on a customer service training course.