I just have to wonder if the OP in their current financial situation has changed their buying habits in such a way that the brands that trigger coupons are no longer being purchased.
Remember, the manufacturer, not the store determines who gets coupons. If you normally buy Heinz Catsup, I can see you getting a coupon for Hunts Catsup, but if you buy Store Brand Catsup, I can see you getting no coupon because even with the coupon, the brand name is likely going to be more expensive. You have already told them price, not brand, is more important to you.