The incorrect price

Went into Gelmar on Friday 7th Jan 2022 and purchased, amongst other items, a few castors with the wheel brake. On checking my receipt the price charged was not the price advertised on the shelf. On querying the issue, a person by the name of Jeoffrey assisted me , and acted with authority.( Not sure of his rank) The entire shelf had the incorrect price advertised and was supposed to be on the shelf next to it. I explained that this was not my problem but this Jeoff was not interested at all . Don't think he understands that it was there issue of incorrect pricing. Was only R5 per item difference and the loss of a regular customer at that store. Luckily the price was not R100 / item extra. Poor service is unacceptable.