Faulty Filters

I bought 6 packs of Benson and Hedges Blue. All 6 packs were packed in the same batch and had the same issue - the filters were not stuck properly. After calling and laying a complaint on 2 occasions, I was promised a call back but am still waiting. Are there any quality checks done? I will definitely be changing my brand since its clear BAT have no sense of what customer service is and i will not support a company like that.