incorrect prices

good day

I posted a review recently and had a issue with my hello peter and it got deleted , so I wnt into pick and pay yesterday to take a pic of the prices on the shelf of the Tently green tea, shelf price R43.99 , you'll scanned R45.99 , my discounts never made a difference cause I was over charged , thing is im not even bothered about the 2rand , its the principle behind it, cause this happens all the time with pick and pay,