Pick n pay prices

I visited pnp midlands mall the other day and purchased rally all car wax for R89.00, there were two pages on the shelf, one of them saying these items are NOT for sale and the other saying they Are (and they were directly next to one another.) I called a pnp staff member and told her that I was confused about whether it is or is not for sale and she too was confused and she took the not for sale page off the shelf before I could take a photo. Later that day I visited checkers cascades and saw that the same item that I had bought from pnp was R10 shy of being double the price! Checkers were not having a sale and their car cleaning section was on lockdown due to the fact that it is not essential.