✔ 最佳答案
MY SUGGESTION:
As requested by the insurance company, the medical insurance claims of the employee XXX on March 2 - 16, 2009 need the proof of illness (Sick leave letters) as support. Since I passed you all the sick leave letters at the end of last month, I would like you to send back to me all the sick leave letters in this period so that I can process the claims as soon as possible.
HOPE IT HELPS!