Pick Pay Canal walk bad service

I was at Pick Pay on the 24/11/2017.I told the cashier I want to buy Intercape bus tickets for 4 kids. She told me the cheapest bus will be Eagleliner and I explicitly told her I don't want a bus that I don't know I would rather stick to Intercape that I came to book. She continued and booked me Eagleliner and confirmed to me that she booked Intercape leaving half past 5 on Sunday. I took the tickets put in my purse and left without checking. On Sunday I went to Intercape at half past 5 cause I was under the impression that it is the bus booked as I requested, to my surprise I was told that my tickets are for Eagley liner and it left at 2 o'clock already. I came to Pick Pay to claim back my money because it was their cashier's fault. They have been sending me around since Monday 27.All I want is my money back they can't tell me they don't do refunds when it's their cashier's fault. I will not loose R1600 for someone's incompetence.