BAD CUSTOMER SERVICE

I am complaining cause I feel I have reached my limit in tolerating bad customer service from pick and pay..Driving in lunch from Byrlsbridge to Southdown looking for the peas that was advertised Natures garden fro R21 I finally found the peas as Southdown...Even the board in the freezer advertising with the same product stocked up gainst [URL Removed] to the till and was told that although it was the same product(1ks Natures garden), the one(only packets in the freezer with the advert) I took was the baby peas...explaining to the teller, supervisor and manager that this is the only packets of peas with the advert that's in the freezer...and explaining to the manger I have already been to another store and exhausted....he still refuses to give me the peas at the advertised price but instead tells me to come back this afternoon as they may receive stock....REALLY??? where is the customer service Pick &amp