What are the requirements for submitting a TM30 notification by registered mail in Thailand?

PTPA, I have a TM30 question. On this Immigration Link [members only], the required documents for TM30 are:

Method 2 Inform by registered mail-

1. Fill out a notification form. Ready to sign the report before the

2. measures 6.5 x 9 inch envelope with a stamp of 10 baht addressed to yourself. To return the officer receipt of notification.

3. Put the documents 1-2, put in a registered envelope. (Keep the registration certificate as evidence) Send to the address:

Alien Residence Notification

Division, Immigration Division 2, Immigration Division 1, Immigration Office.

80th Anniversary Government Center

, 120 Moo 3, Chaeng Watthana Road, Soi 7, Thung Song Hong Subdistrict, Lak Si District, Bangkok 10210

Anything else required apart from the completed form and envelope? Thank you.