Overcharged by R100 for an Item

While in Norwood Mall I decided to drop by Pick n Pay to do my grocery shopping since I was in the area. I bought a pack of skinless chicken breasts , among other things. The chicken had a sticker price of R87.00. When I got home I examined the till slip and realised that I had been charged an extra R100 for the chicken. Now I need to drive over 30 KM back to Norwood Mall to return the chicken and get a refund due to a mistake on Pick n Pays behalf. This is an experience that will certainly deter me from purchasing from Pick n Pay in the future.