PNP DISAPPOINTED

I went on the14th Sept 2019 to buy my shopping as i would normally do every second week the mince i bought was off there was no smell but only when cooking the food after tasting it the pot of food was off i couldn't feed my kids that. I phoned and complained a lady from pnp phoned me back and i told her i wanto be refund for my pot food she said i had no evidence that im speaking the truth. I told her i have the slip and barcode she told me she can only refund the mince Pnp was always the best store to buy from every was always fresh not anymore two weeks ago we bought a old cake cost me almost R100. I left that but now this. Im a single parent i can afford to through my monies away.