Benson And Hedges — b & h blue

I brought a pack of 20 b&h blue, first three fags i smoked tasted horrible, like herbs! Left a disgusting herby/purfumey taste in my mouth and burnt funnily (Burnt more down one side and then unburnt chunks where falling out). If the fourth one i smoke tastes the same ill never be buying these again, i've been smoking b&h for a long time now what is this??? The cost of cigarettes these days, you would expect to actually get tabacco in them!!!