Bad Customer Service -Newtown Junction

I have been looking for the grey sneakers currently marked down to R50 in a size 8. Eventually got them at Newtown Junction.One pair. But the problem it had no price on. So, i stood there for about 20 minutes for them to search for a price. After 20 minutes I went to the shelf to get a blue pair with a price tag on which stated that it was marked down to R50 , they searched again on the system and found some sneakers that they thought it is. But now i had to puy R80. What the hell? Why would I pay R80 for the same sneakers that is R50 in Blue and R50 in other shops. Very bad customer service and exceptional bad Sales staff. I will think twice now to buy anything from Mr Price Clothing going forward. Especially not from the Newtown Junction outlet