Spar wow guys so impressive

Spar wow guys so impressive. Bought a 7kg bag of potatoes from the lifestyle branch in Ballito. Such pathetic quality. I tried to exhnage it at spar umhlali and was told they would only take it back if there is nothing wrong with it. Brain locked why would any sane person return something if there is nothing wrong with the item. Not as if i went to checkers or Woolworths and tried to return an item I purchased from spar. Over and that daylight ******* wax charged r134.00 for a 4lg pack of potatoes yet a 10kg bag in the very same shop is 170. Please help me understand this. Disgusted hey