I've had another reply about the filthy steps.
It seems it's the *wrong type of flooring*!
"As I was unable to view the photos that you kindly sent, I was also unable to provide the Chargeman with the full details however I did mention to him that there was a fluff like substance on the steps and he advised me that he is aware of this and this occurs when the steps are swept as a result of the flooring used."
Anyway,same poo,different day
Yesterday's photo