If you are sking how did I do the TM30...I registered on Immigration website using my GFs email, ID number and phone no. Filled in my own details, sent it off, and it was done, over five years ago. Since then the paper in my Passport was getting a bit tatty, so last time I did Extension, the IO printed me a new one.
I have done at least one trip abroad per year since then, and stayed at many hotels down in Pattaya or up in Chiang Mai, never been asked to re-register my TM30.