ну если кому интересно, вот полный текст (Кристина - это медиатор)
Hi Christine and Evgeny,
If the freelancer wants to pay for the arbitration, please feel free to do that. However, I will not pay $291 for the arbitration. The freelancer even though will be rewarded $150 will end up losing $141. I am very rational and I am trying to solve the dispute. Since the freelancer will lose $141 I am willing to lose an equal amount and raise the amount I am ready to offer the freelancer to an additional $5. I think this is fair and equitable and it helps us solve the dispute.