What is the reporting process for a non-immigrant O-A Visa holder upon arrival in Thailand, and what are the deadlines for establishing a permanent address and fulfilling financial requirements?

Upon arriving in Thailand with a non-immigrant O-A Visa, you must report your arrival to the immigration office within 90 days. You are required to establish a permanent address and deposit the minimum financial amount stipulated by your visa within this timeframe. It's advisable to confirm the latest regulations as they may vary.