Client owes you the money, if they are evading you then you need to get a barrister involved. Recruiter might be liable- I think they would be if they were in

Client owes you the money, if they are evading you then you need to get a barrister involved. Recruiter might be liable- I think they would be if they were in the USA- but that depends on UK laws. I'm not a lawyer and don't know the law, but I would be surprised if you aren't owed the money for the work you did.