When I got my new Passport, the embassy gave me back my old, devaluated Passport (apart from those pages who still had a valid visa in it, like my Thai Non-b and my USA) and some letter I did not specifically asked for.
On my next Visa visa run a few weeks later, I gave Immigration in Sadao both my Passports and that letter. The officer passed my documents to a girl in the next boot who put a transfer stamp on the first page of it
Only problem I had, after the girl stamped my passport I was of to Malaysia only to be sent back as she didn't stamp me out of the country.
Sure, why not. The 2 entries per year rule is only if you're on a Visa Exempt and you enter by land. Even there, immigration will not necessarily enforce it if there are several weeks or months in between.
As you have entered on a Tourist Visa, not very likely you would have problem entering in two weeks on a 30 days Visa Exempt - as long you comply to the requirements needed.
Probably more cost effective if you get a SETV for around 1'000 THB (depends which country you get it from) before you enter Thailand, That allows you 1 entry to Thailand and up to 60 days in the country. You could basically go the next day to any immigration in Thailand and extend it for 30 days at a cost of 1'900 THB which would give you a total of 90 days.
Alternative
You enter Thailand on a Visa Exempt which allows you to stay up to 30 days for free. You can extend that any day after you entered the country at any immigration office in Thailand and extend it for 30 days at a cost of 1'900 THB which would give you a total of 60 days.
The 30 days extension will be added on to the "Admitted Until" date shown on your entry stamp. (Not the date you apply for it)
You need:
- 1,900 Thai Baht
- Your passport
- filled in application (get it at the immigration office)
- passport photo (3.5 cm x 4.5 cm, they aren’t too picky like some places)
- photocopy of your passport, you current Thai visa, and your stamps into the country
