I'm in tears here. DWP benefits cap helpline say they have no way of seeing the breakdown of what benefits they have included in my calculation that makes me over the cap.
They advised me to ring my local Housing Benefit office as they would have that info. They even gave me the number.
So I ring my local Housing Benefit office. Who say that THEY have no information on how it was decided that I am over the benefit cap, and to ring the benefit cap helpline.
So nobody can tell me HOW I'm over the benefit cap without being exempt.
I was getting DLA, which would have exempted me from the cap, but that has been stopped under a reconsideration which I am appealing.
Because my DLA is not in payment, my severe disablement top up on my IS stays 'active' but is not in payment until the DLA situation is resolved.
Now either they've counted the severe disablement top up in my income WHEN I'M NOT EVEN GETTING IT, or they're ignoring the fact that I have an appeal going through for DLA.
Because you can't get severe disablement top up on your IS unless you are in receipt of DLA.
I tried Shelter's Welfare advisors, as advised to on the back of the DWP letter. THEY don't know who decided I was over the cap and why if the Benefits Cap Advice line don't know.
So THEY advised me to ring the community legal team. Who I have just spoken to, but the trained advisors are busy and can't call me back until 5pm tomorrow.
So I'm still in the dark as to how they came to a figure that makes me over the cap without being exempt from it. 
Currently in payment, that counts towards the cap :
£ 71 IS
£217 CTC
£60 ChB
£130 HB
= £478 by my reckoning.
Not OVER £500/wk.
Soooo, the only logical conclusion is that they are including the disability premiums on my IS that I'm not currently receiving and ARE ONLY PAID IF YOU GET DLA THAT EXEMPTS YOU FROM THE CAP.
Incompetent barstewards.