Unhappy customer, bad customer service.

I'm not happy with service I got from pick n pay at mall of the north polokwane today, I wanted to but good and do a cash withdrawal so cashier Rebecca Bosego assisted me with a very good customer service and I'm happy with her service even though she didn't have cash she ask the other cashier by name of Tebogo to help me with the cashback so I went to Tebogo but the poor service and the bad attitude I got there just made me so angry and she's so disrespectful, I mean who talk to customers like that. I know about customer service so what I got from her was totally non-sense, I'm not happy with the service I got. I will like to get feedback on how pick n pay deal with cashiers like this I wonder how many customers she treated like this. Dolly Tladi ***