Boxer Richmond unfair treatment

I was at Boxer on the 15/12/2021 at Richmond. I took 60 eggs that was displayed R59. 99 from the shelf but when I was at the till the price changed to R114. I was asked to show them that price display which I did but supervisor refused to give eggs at the displayed price and went to the manager which he also refused. I requested to see the manager in person and Maxwell the manager told me that he cannot give me those eggs at the displayed price then it either I leave the eggs or I take them at R114 because they made a mistake.. No apologies and no nothing. I was very unhappy and I left the eggs. I don't believe this is the right way of handling or treating the customer. I was very disappointed and I'm is. I told the guy that I will report this matter and he did not seem to have problem or any remorse about the whole situation.