I am pleased that you have awarded Mamyalynne the 'Best Answer' because she has certainly advised you the best course of action at this stage.
Incidentally, you can sue for anything, but so often it can be very costly and a complete waste of time. O.K. there are firms of Solicitors who offer 'No Win No Fee', but it could be the case that in a Win Situation the Solicitors fees could exceed the amount of Compensation awarded by the Court.