Relative to the many posts about opening a bank account, the rules have indeed changed and tightened up. I have been a resident of Thailand on a Non-OA visa for ten years, and have two Bangkok Bank accounts- my original one in Bangkok, and the second of which I opened 3 years ago in Jomtien Pattaya. I was only asked for my passport and visa for that one, but today I tried to open a new one in Sa Kaeo to use for my visa renewal in the Immigration Office in Aranyaprathep in August. They informed me that they now require a letter from Immigration, which if I understood correctly is a Certificate of Residence. I plan to do that next week. Any tips on what will be required?