Sometimes you get to hear about an opportunity at the last minute, or you are unable to respond in a timely manner. Often, if you ask for an extension, it will be granted. Due to time constraints this letter should be faxed or express mailed.
1234, Main Street
Boston, MA 02123
09 April, 2005
<Recipient Address Goes Here>
Although this is difficult, I would like to ask for some additional time to <what you will do>. <Reason(s).> <Time needed.>
Please don't think this is the normal way we do business. We pride ourselves in providing timely and thorough <proposals/quotations>. I will call you <when you will call> to see if this is agreeable to you. Thank you for your consideration and patience. We look forward to doing business with you.
encl: <List of enclosed items goes here>