Is there any other way to make 90 days notification of address if not notifying in person or by agent? What documents are required and what is the procedure?

90-day notification can be made by:
1. Filling in online form.
2. Sending registered post. Required documents and procedures are as follow ;

Photocopy of the alien passport on pages of front page (name, surname, date of issue, expired date etc.) , current visa , latest arrival stamp of immigration, and the current stamp of extention of temporary stay.
Photocopy of departure card (TM.6) both sides.
The original of the latest receipt of 90 days notification (if any, in case of no departure)
Filling up the Form TM.47 and signed by the alien.
Stamped addressed envelop (size 6.5X9 inches) attached with at least 10 Baht stamp in order to send back the receipt and new form (Form TM.47) to the alien.
Enclose all documents from 1-5 in the envelope which must be sent by registred post to the Immigration Office located in the same area of the alien’s residence. Such documents have to be sent in advance not shorter than 7 days before the due date. ( the receipt of the said registered post must be kept as evidence)