Just remember you need a photocopy of the Laos visa and entry stamp too . It’s the one bit of pre arrival paperwork you can’t do . But your hotel probably can give you a copy when you check in if the night before or get it done in the consulate on arrival
Sorry to hear the hoops you’re jumping thru . Don’t add to your problems by thinking of using the Phuket ampho . From my experience any where but Phuket . !!
The TM30 card is your registered accommodation either through a home address or a hotel / resort / hostel .
Away from a residential address it is updated by the accommodation where you are staying .
All the TM30 card registration achieves is to complete the circle and allow the authorities to track your location .
So you’ll never hold two cards at the same time and as soon as you theoretically overnight stay away from the TM30 registered location you need to re register when you return .
So if you have a residence in two locations then you would need to be registered at one whenever staying there
Is it important to remain current with the TM30 . Well there was a line in the interview with the Phuket head of immigration that I’ll try and locate but it did sum it up pretty well , even though the office is now backtracking on some of the overnight away requirements.
Of note is that the TM30 card is dated with the date you registered