Art. 17 Abs. 2 SchKG; where the law requires written notice of a debt enforcement authority's measure, the complaint period begins only upon service of the notice, not upon execution of the measure. This rule follows from the statutory requirement of communication to the parties and from the nature of the remedy period. A complaint filed within ten days of delivery is timely, even if more than ten days have elapsed since the measure itself (consid. 1).