“Period 1: The Defendants should pay the Claimant’s reasonable costs of the application to receipt of the Defendants’ e-mail of27 October 2014 …. Period 2: The Claimant should pay the Defendants’ reasonable costs from the time of receipt of the e-mail of 27 October up to and including the hearing, but with a suitable credit [25% was suggested] to be given to reflect the fact that the Claimant had had some success at the hearing in that he had obtained an interim stay of the Fourth Adjudication until the promised date of payment of the money owed under the Third Adjudication (which has subsequently been extended by agreement between the parties).”