I had one transaction to Bangkok bank not coded as international. I went to Kasikorn (Wise's partner in Thailand, and the bank the transaction came through on the way to Bangkok bank) and got a letter verifying that it was an international transaction.
But immigration never noticed it wasn't coded as international. In the 3 years I've been transferring money in every month, that's only happened once.
And as stated, use the 'funds for long term stay' reason in the drop-down.
In terms of transfer times, Wise does not take money from your home country bank account and transfer it to Thailand. Instead, it finds local, matching transactions in the two countries, and matches them up. This process takes longer. In general, the larger the amount, the longer it takes.
I've only heard of one raid, in Chiang Mai. It was an internet cafe and afterwards they let everybody go, saying it was a misunderstanding, and that it is not illegal to use an internet cafe.
Do you have any source for any other raid on a remote worker or workers?
this is correct. Then, if you start depositing 65k every month, after a year, you can move to the income method. Since you're from the US, you'll need to show them as foreign transfers to your Thai bank, rather than getting a letter verifying the income.