He's now at the point where he wants to repoint the domain at his own website however the current (not sure of the term) server owners are say they cant repoint it. Now I know this is rubbish as he's domain is in his name and its just the firm being awkward .
Whats my next step in forcing them to repoint? Its a .co.uk domain
What's their bona fide reason for making life difficult?
Talk nicely to them one more time. The art of the menance is to talk nicely but very clearly and deliberately, asking very pointed questions.
Ask to take your inquiry up the chain of command.
Check the registrar's WhoIs for added contact info.
Use a fax machine.
Failing all else contact your friendly family solicitor - hopefully your second cousin twice removed who owes you a small favor - and ask that he/she call on your behalf.
More often than not, when you hit an impasse like this, it's time to change registrars - sooooo - you contact a new, helpful registrar - one who knows who to call at the central registry OR who knows how to schmooze the other company ("Yeah, I know. We have PITA customers too. Can you help me here? Thanks.).