“This letter contains an offer on costs. We are instructed to offer settlement of costs in this action on the following terms: - 1. Except as provided for in paragraph 2 below, the defendant shall pay the claimant’s costs of this action on the standard basis subject to detailed assessment if not agreed and to be paid within 21 days of agreement or assessment. 2. The defendant shall pay the claimant’s costs on an indemnity basis from7 April 2008 to30 April 2008 . This offer is open for acceptance until 10am on23 April 2009 .”