Jim James Yes they do, but they either need to either dig into the computer or go to the back office use a different software, not entirely sure. What I am pretty confident is that the first screen shows them the last 3 entries or so. I may be mistaken though.
Christopher Benjamin Hägglöf Exactly what I am trying to avoid. Red stamps would generally come on the third consecutive ( or non consecutive?) visa from a place like Vientiane. After that stamp, no chance of getting another visa at the same Consulate until you change the passport.
But it's all good now since you have a fresh passport.
Rik Jaques Another one hard to answer. I had about 7 SETVs on my previous passport but then again I change it every two years.
Never heard a comment from Immigration, the issues are more likely to be at the Consulates when the passport gets too full. But some of them just don't care. But I mix them up. One after another. I don't hit the same Consulate twice in a row and no more than twice in total per passport.
Again, I do travel as well. Just recently came back from a three week trip to Europe.
On visa runs, if the admitted until is the 6th, I leave on the 2nd (never stretch it to the very last day).
Sometimes I stay an extra day in the place where I got my visa from simply because I like it, sometimes not.
Now I'm thinking to do Bali, get another SETV there, and probably stay a week. 😁
Then sometimes i get reentry permits for occasional trips. My nationality does not qualify for visa exempt anyways.
To conclude, the lottery is more on repeated visa exempt entries (more than 6 and the system has a warning in place), rather than on SETVs, where it's highly unlikely to be refused entry.
It's a tricky question because we don't have a definitive answer and situations can change. Phnom Pehn for instance seems to be counting them all, but Vientiane should be counting only the ones issued by them. Generally, 2 or 3 from Vientiane in a passport is safe, 4th they may refuse. That's exactly why I wanted to know how many from Vientiane did the OP have in his previous passport.
To be safe, I only hit one location twice per passport.
Then to answer your original question, Samut Prakan is the office you should go to, since you live in Samut Prakan. Your proof of address should be sufficient (if that's even needed -it may be, i did actually search the web but cannot find a conclusive answer). But logically, should it be required, it would not have to cover the full 30 days, since you are planning to exit anyway, so it should be accepted.
If you encounter any issues with Samut Prakan, which I don't think you will, use Chaengwatthana as a second option, but be aware you need to put down on the application form a Bangkok address, could be anything, a hotel, a friend's, etc. You do not need to supply any proof for this address at Chaengwatthana. Just do not complete a Samut Prakan address at Chaengwatthana if you end up going there, because they will send you to Samut Prakan.