No Court shall entertain any suit for the recovery of wages in so far as the sum so claimed
- forms the subject of an application under section 20 which has been presented by or on behalf of the plaintiff; or
- has formed the subject of a direction under that section in favour of the plaintiff; or
- has been adjudged in any proceeding under that section not to be due to the plaintiff; or
- could have been recovered by an application under that section.