Rule 6(1a) of service tax

I have a doubt regarding the intimation that is to be given to Jurisdictional Superintendant of Central Excise under rule 6(1A) of Service Tax Rules.

I am claming Advance Payment in the return where there is a condition to intimate to Jurisdictional Superintendant of Central Excise within 15 days.So how to intimate the details by writing letter and submitting manually or by e-mail,and if by mail please provide e-mail id.