EXPIRED FOODS

I purchased the 6 pack full cream ayshire yoghurt for my 10month old baby. he kept throwing up and i couldnt understand...i checked the youghurt and there was no expiry date on the packaging. i contacted Ferdi and he said i should return it, which i did but he was not working. i called him the next day to let him know and i requested to log a complaint as my baby got very ill from the youghurt...its 2weeks now no feedback from the complaint i logged or feedback from Ferdi...WOOLWORTS IS CERTAINLY NOT MAKING A DIFFERENCE!