“Where a writ has to be transmitted to another member state for the purposes of service under the provisions of this Regulation and the defendant has not appeared, judgment shall not be given until it is established that– (a) the document was served by a method prescribed by the internal law of the Member State addressed for the service of documents in domestic actions upon persons who are within its territory, or (b) the document was actually delivered to the defendant or to his residence by another method provided for by this Regulation.”