催款函是卖放在规定期限内未收到货款，提醒或催促买方付款的函件。 写此类催款函要求文字简练、意思清楚；同时要求语气诚恳、体贴，彬彬有理。不可轻易怀疑对方故意拖欠不付，以免伤害对方感情，不利于达到索款的目的，或妨碍以后的业务。对于某些屡催不付，故意逃款的客户，语气则要强硬，措辞坚决。总之索款要把握一个原则：既要达到索款目的，又要与客户保持友好关系。 外贸英语函电：催款函范文实用范例 （1）subject: Demanding Overdue Payment Dear Sirs, Account No.8756 As you are usually very prompt in settling your accounts, we wonder whether there is any special reason why we have not received payment of the above account, already a month overdue. We think you may not have received