Clicks Chris Hani branch staff fighting a customer

I walked in Clicks Chris Hani branch to buy a prescription while waiting to be called from the Queue i noticed a display of elbow crutch in a promotional dump bin with a big lollipop i think it was an A4 signage displaying a sign with a crutch picture saying only available at clicks for R215.00 no other price was displayed i then decided to take two crutches for a family member when i went to pay the price scanned R229.00 on the till, I explained to the cashier about the lollipop price displayed on the dump bin the cashier checked and came back to me told me no thats not a price for the crutches i took its suppose to be a different name i then said on that bin promotion there is only one brand name crutches all of them and its full with a big promotion price and there is no where they mention a different name except the promotion says only at clicks, the cashier said they cant give me that price its suppose to be a different name brand i asked for a manager i was attended by a lady store manager and a gentleman supervisor they called the floor staff member girl responsible for it and that girl instead of trying to appologise for the inconvenience she instead behaved like she was in the streets standing up to me infront of management and customers who was viewing, she was telling me that only a certain brand name will give me the price not what was displayed then she said to me infront of management and customers who was viewing ( you should have asked ) her name given to me is Katlego Olifant , this was the first shocking experience ive ever received at clicks i have also never seen that behavior before at clicks stores , i didn't know staff is thought to fight with customers instead of resolving the error displayed.