I have no wish to work with them again!
Andy,
I'm not in the UK so I can't advise you on the law but you indicate
that
you worked in this club before. You also indicate that you had no written
contract. You want to be paid a premium rate for your work rather than
your
basic rate. Did the club know about your premium rate schedule? If not it
is
unlikely that you will get a premium rate.
The amounts involved are quite small. In the USA we have small claims
court, a court which is informal and from which lawyers are barred. If
such
courts are available then you might wish to sue. Suing is not a good idea
since you will anger the club owners. You indicate that the owners are
disputing your billing so you and the owners are in communication which
suggests that you can try and negotiate a settlement. This should be
considered if you wish to work in this club again.
Good luck,
Dave M.