Pick n pay clothing waverley : missing price on men sandals

Went to pick n pay clothing waverley looking for mens sandals . Saw a nice pair. Went to the till point to pay. No price on sandals. Scanning the code didnt help either .Shop assistant took s photo to get price. In the meantime i went to look for another pair. Saw a pair but the sizes differed. One.was marked size 8 an the other 7. Was annoyed .left shop without buying anything. Totally unacceptable. Why no price tag on sandals which i chose first?