Marlboro / black 100s

I have bought 3 packs with the.50 cents off on the pack. I opened the cigarettes and come to find out hey are not blacks at all they are special blend red 100s. I just would like to know what is going on. I pay to smoke a certain type of cigarettes and that's the kind I want to smoke not a completely different cigarette. If I wanted to smoke special blend reds I would get them.