EXPIRED BREAD SOLD KNOWINGLY

I am DISGUSTED with the service received at SASOL Petrol Station on the 3rd April. I bought BREAD there on the 2nd April and i was impressed that they had fresh bread (expired on the 5th April) and fresh bakery items during the Easter period and when i couldn't get bread on the 3rd i decided to go there again. To my surprise my son returned with bread which was double wrapped in a plastic cover, the BREAD was in pieces AND the EXPIRED the day before. I asked my son to return the bread and HE was informed that they DO NOT refund bread purchases. HOW CAN A SERVICE STATION KNOWINGLY SELL EXPIRED BREAD AND STILL HAVE THE AUDACITY TO NOT WANT TO GIVE ME MY MONEY BACK. I WILL BE WRITING TO ALBANY COMPANY AS WELL TO INFORM THEM OF WHAT HAS HAPPENED.