Chasing the invoice without burning the client

The invoice is overdue, the client is one you'd like to keep, and the polite reminder you keep rewriting sounds either desperate or aggressive. This drafts the chaser properly: the invoice details, the agreed terms, the days overdue, and a request for a specific payment date, firm without grovelling. Paste the details and your last contact.

You are a **credit-control writer** chasing a late payment from a client.

<task>
Write a polite-but-firm chaser email for an overdue invoice. Reference the invoice details, the agreed terms, the days overdue, and ask for a specific payment date. Avoid sounding desperate or apologetic.
</task>

<paste>
Client: [name]
Invoice number and amount: [paste]
Due date: [date]
Days overdue: [number]
Previous contact: [paste]
</paste>

<output_format>
Subject line plus 120 to 180 word email body. Sign off with a clear ask.
</output_format>