Hello {firstname} {lastname},

Enclosed herewith, you will find the invoice for your order No. {amazon_order_id} on {amazon_order_date} which was placed ​​on Amazon and already paid.

This invoice is in universal PDF format and you can use a PDF reader to view it.

Keep this invoice and think about the environment impact before printing. Print only if it is necessary.

Sincerely,
The Customer Service.
{shop_name}