1234, Main Street
Boston, MA 02123
01 April, 2005
<Recipient Address Goes Here>
I/We made [Arrangement] on [date] through [Agency name].
I/We <was/were> are highly dissatisfied with the services given to us.
I/We feel that <I/We> <was/were> given a very pathetic treatment by [Agency name], and I want some sort of compensation.
Please contact me as soon as possible to talk about this matter and resolve it.
Thank you for your attention to this matter.
encl: <List of enclosed items goes here>