求翻译：12.2由于委托人或第三人的原因使咨询人工作受到阻碍或延误以致增加了工作量或持续时间，则咨询人应将此情况与可能产生的影响及时书面通知委托人。由此增加的工作量视为额外服务，完成建设工程造价咨询工作的时间应当相应延长，并得到额外的酬金。是什么意思？

12.2 reasons due to the client or third person so that consultants work disruption or delay resulting increase in workload or duration, consultation shall timely notify the principal in writing of this situation and the possible impact. Regarded as an additional service, thereby increasing the amoun