You need to be referred to a barrister or solicitor through the barprobono unit by the CAB, a solicitor or an authorised advice agency. There has to be at least 3 weeks notice.
A referral is subject to various criteria such as not being eligible for public funding and subject to acceptance by a solicitor/barrister. If your case is not accepted you won''t receive any assistance.
On the grounds that the service is free it is bound to be very popular and those that provide it can accept or reject cases therefore only the most needy cases will receive attention.