when you get to your first hotel they will copy your passport and complete a TM30 which notifies immigration of your address in Thailand. When you move to your new hotel after the first week that hotel will also copy your passport and file a TM30. So for the landing card TDAC you only need your first accommodation in Thailand.
I’ve entered 5-6 six times a year visa exempt for the last 4 years. Never been refused or warned but have been asked for 2 of the 3 proofs on a couple of occasions.
Three proofs
1. Ticket out of Thailand within the visa exempt period
2. Initial address in Thailand
3. Proof I can support self. ( 20,000 Thai baht in cash) I’m told IO will not accept proof of money in the bank or equivalent amount in other currency.
I’ve been asked to show onward travel tickets twice and accommodation. Never been asked to show the cash.
I was once asked by IO why I keep entering and leaving and I replied I go home to Uk to work for two months to make money then I come to Thailand for two months to spend all my money and they seemed happy with that.
that’s generally how the non O works , get visa in own country ( 3 month visa) travel to Thailand , open bank account deposit 800,000 baht from home country account. Allow funds to season then apply for 12 month extension.
you misread. You get a three month non O visa then you use that to assist with opening your bank account. After you deposit the money and season it for 2 months you apply for the 12 month visa extension. The 12 month extension is an extension of your original 3 month visa. ( that is what is commonly referred to as your 12 month retirement visa but it’s actually a 12 month extension of you pre existing 3 month non O visa.)