Terrible experience with buying the pies

From buying Mama's pies for years we disappointed with the quality of the pies. I purchased pies from Shoprite and we heat it up and to my surprise I found a piece of foil in the pie itself. That instantly spoiled my appetite. . I was totally disappointed with the steak and kidney pie. We then called Heinz and the customer care lady was very rude. She said the courier would fetch the pie and then they sent us R150 coupon off any Heinz product. The courier comoany never came. We then went to Shop rite and the manager said they couldn't help us. Heinz has to send a rep and come look at it. We were sent back and forth. This is not how a service should be rendered. What should be done in this case.