D- South Society,
6 January 2012
<Mention recipient’s address>
Dear <Recipient’s name>
We would like to thank you for giving our XYZ Company the opportunity to serve you.
Please find your enclosed invoice for <mention the invoice is for what product >.
For any queries please feel free to contact us. We look forward to serving you in the future and making a long association with your company.
encl: <mention list of enclosed items>