@Phil ****
Not impossible...if you already have a Thai bank account. I opened mine during quarantine, and for almost two years I used it primarily for deposits when the rate was good, and using the BK Bank ATM cash withdrawals when I made trips. I applied for the Non-O at CB Immigration recently after the 800k was seasoned. Take a Thai person with you that can speak English to you, that helped me along with the help from this group.