Sub: Annual leave request before the due date.
Dear Sir
I would like to request to your god office that, kindly approve my annual leave 15 days before the due date. I would be grateful if you could authorise leave for me from 14th May 2011, to enable me to spend time with my family during their annual vacation.
Your letter is not clear. What is "15 days before due date"?
Just request the dates that you want to take your leave.
Dear Sir;
I would like to arrange to take my annual leave starting May 14, 2011 through May XX, 2011.
Please confirm this request.
Sincerely,
your name.