My advice: Submit it via mail. Your friend can do the 90 day report by mail NO LATER THEN 15 days before the due date for Bangkok. I *believe* you need the following:
1. A copy of the data ("picture") page of the passport
2. Copy of the last TM.6 card
3. A completed TM.47
4. A self addressed stamp envelop with a 10 THB stamp
Send it to the following address:
90 Days Report Section Immigration Division 1 ,
Immigration Bureau, Chalermprakiat Government Complex B Building
120 Moo 3 ,
Chaengwattana Rd., Soi 7,
Toongsonghong, Laksi,
Bangkok.
*****
For all of you people in Bangkok who do the 90 day report by mail, is that correct?