Again and again and again

I am so annoyed with Pick n pay on the bluff and it is not the first time. Yesterday I decided to do my weekly school and home shopping at Hillside mall. I took two Enrista coffee bags as the packs of 20's were all at barcodes showing R49.99. Now, when I shop I don't stand and match barcodes as it should not even be necessary. I see a price, I take a item. When I got to the till it scanned R80 and I insisted getting it for R49.99. The supervisor asked me to show her and so I did and I was rite, there wasn't even a price for a pack of 20 or shelve space so they just packed it by the wrong prices. The Manager then told me he wont give it to me for that price and I was laughed at as well. Truly disgusted with this store. I will much rather shop at checkers as I have never had this problem there. Not impressed