Further to that which Richard B wrote earlier : if you are in receipt of any DWP benefit, then there is a real possibility of Legal Aid sounding.

Find out if there is a Neighbourhood Law Centre near you.

Some of the 'New Universities' - i.e. former Polytechnics - frequently hold Legal Clinics, where advice is free or the subject of a low fee or donation. If you are in receipt of any Benefit, then almost certainly any such fee would be waived.

If you wish to PM me, in Absolute Confidence, I might be able to direct you to one, if you are prepared, in any such PM, to give me the locality (e.g. town, city) - NOT your address ! - in which you live.