A letter acknowledging an overdue payment<\/strong> is a formal letter written to inform an individual that the payment was made by him after it being past its due date has been received successfully.<\/p>\n Such letters are basically acknowledgment letters that let the person know there has been no confusion or mix-up with the overdue payment.<\/p>\n Such letters may also attempt to make the person understand that letting payments turn overdue is not right as it puts the company in a loss and also wastes time. This may especially be written if the customer\u2019s behavior in this fashion is habitual.