(1) In a service relationship that is not an employment relationship within the meaning of section 622, notice of termination is permissible, even without the prerequisite designated in section 626 being met, if the person obliged to perform services, without being in a permanent service relationship with fixed earnings, is to perform services of a higher nature with which people are customarily entrusted on the basis of special trust.
(2) The person obliged to perform services may only give notice in such a manner that the person entitled to services is able to obtain the services elsewhere, unless there is a compelling reason for untimely notice of termination. If they give notice in untimely fashion without such cause, then they are to compensate the person entitled to services for the damage arising therefrom.