Checkers Somerset Mall bad service

Checkers Somerset Mall had a item on thr shelves for R399. 99 when I got to the till it scanned R1499. 99. The supervisor and someone that was busy with camera installation came to me and said the store is busy with stock take and I can think that the can't be the items price and they are not going to give it for the price on the shelf and I must read the labels. The supervisor was very unprofessional in saying in front of customers I can think the price is wrong. The manager was standing and looking but didn't want to assist.