Rothmans D Range Black Long Cigarettes Burn Poorly and Shed Ash

I've been smoking Rothmans D-Range Black Long cigarettes for a long now, and the problems I've been having lately have really upset me. There are large pieces of tobacco and even stems in the cigarette, which shows that the quality has gone down. It doesn't burn right and keeps going out, which makes it less fun. The smoke isn't as strong or pleasurable as it used to be. Also, over the past four months, it has been almost impossible to find this item in retailers. I've had to go to a lot of different places simply to try to get a pack. The worst part is that particles of flaming ash have dropped off and ruined my clothes and furniture. It's really making me think twice about buying this brand again.