[Your letterhead, if desired; if not, your return address]
[Date of letter-month, day, and year]
[Recipient's first and last names]
[Street or P.O. box address]
[City, State ZIP code]
Dear [recipient's name]:
I just wanted to take a moment to thank you for hiring me for the job of customer service manager with your company when we spoke over the phone today. As I mentioned when we talked, I am extremely eager to begin working with you and to contributing to your department's success. I know you have many excellent practices in place already, so it thrills me to be able to work with such a stellar organization.
Per your request, I will complete and return all of the documents that you e-mailed to me. If I have any questions, I will be sure to let you know. Otherwise, I look forward to seeing you for my first day of work on Monday, July 15. Thank you again for hiring me for such an excellent job and opportunity.
[Sender's first and last names]