A written communication that outlines supplementary costs applied to a service or product and provides justification for these fees. It includes details regarding the original agreement, the reason for the extra charges, the total amount due, and instructions for payment. For example, a customer who exceeded the agreed-upon data usage limit on their mobile plan might receive this type of communication detailing the overage fees and how to pay them.
This type of notification fosters transparency and maintains positive customer relations by preventing confusion and disputes. It provides a documented record of the additional costs, serving as a reference point for both the sender and the recipient. Historically, such communications were often delivered via postal mail, but the advent of email has made the process more efficient and cost-effective, enabling faster dissemination of information.
