Work Place Help

I work in an office / warehouse environment somewhere that isn't accessible to the public.  Although we do have disabled toilets, I have raised "official" concerns with my H+S department where they were dismissed.

The two main areas that are of concern and i realise that they may sound cliche, but its the red pull cord and storing of cleaning materials in the disabled toilet.

I should note I dont have any mobility issues, however i dont think that should stop me from looking out for others.
The red pull cord, if its not tied up, also doesn't reach the floor, i would say its at least a meter off the ground.  

I have mentioned to them that these are a legal requirement as part of PART M , there response is that this doesn't apply.

There answer for some of what i require the bare minimum is that "we dont have any disabled members of staff so we dont have to worry about it" However I do believe some things are legal requirements regardless.

Anyone that can point me in the right direction of evidence, proof, help? would be greatly appreciated.