I purchased 20 cans of cat food for which I had 9 ...

I purchased 20 cans of cat food for which I had 9 coupons sent by Pet Supermarket for various pet supplies, several of them were for food and at least one of them should have applied to my purchase. Because my cans were not the same color as the ones pictured in the coupon(s) they would not accept them (one coupon for $1.00 and one for $1.50 for cat food...one for 30 cans and I would have purchased 30 and one for 6 cans). I even had the clerk ask the manager and he said no to the coupons. I went on and made the purchase but will getting my pet supplies from another pet store in the future. I hope it is worth it to a store to lose customers over a dollar. My family was with me and they will not be shopping there any longer either.