Poor food quality

Bought corn still with in sell by date but the corn was mouldy .eventhough I took it back the management apologized and refunded me .I dissatisfied by the fact that I have to constantly take food items back to the store because of food quality and I advised its a huge inconvenience ever since the opening of checkers in the area I have been taking food items back because the food is spoilt . I mean for a huge brand like checkers to keep on having this issue is unexpectable .its not about just a refund and an apology anymore as its becoming a norm .very disappointed.