- مطالبات ومرتجعات لفواتير غير مسددة، تتبعها احتجاجات لعدم الدفع في بعض الأحيان؛
frequent deposits of cheques or requests for bill discounting, especially for round numbers, with several endorsements, showing other recurring features, or issued to the bearer or to the drawer; calls and returns of unpaid bills sometimes followed by protest; substantial balancing of crediting and debiting.