5. In the event that a staff of the contractor shall be unable to perform her duties, the contractor shall agree to supply another employee in substitution within 10.00 hrs. If the contractor shall not be able to supply staff to work in substitution, the contractor shall agree and acknowledge to reduce the wage rate to 467 (four hundred and sixty seven) baht per day, in order that the employer shall not be waived the right of any claims for actual damages and the right to terminate the agreement by this reason.