Pall Mall green packet cigarettes with different flavours

Since Pall Mall green menthol came out I bought it. I smoke 1x packet a day. For the last 2 months I am still buying, BUT every secind cigarette is another flavour and not menthol. When smoking it, I start coughing. Can any rep from British American Tobacco please assist me with an answer. I only buy my cigarettes at 1x store only where I stay. There is definitely something drastically wrong with Pall Mall cigarettes. I am considering changing my brand which I dont really want to. This is very bad for business for BAT. I need an answer plsase.