I often wonder the same thing when I read posts from people located in the UK. It gives the impression that 85 % of the population can't sting a sentence together 🤔
Since moving here I now have a yellow book and pink id card I opened a bank account the other day without a ton of Paper work and a support team 😂 and no need to go to immigration for another certificate of residency. Good luck once again things will just fall into place for you.
This is what I did in order . Arrived on Saturday organised address , Immigration tm30, certificate of residency, AIS to register my phone number to my passport 50 baht for the paper you will need for the bank. Bank to open account deposit 800,000 . All done on Monday morning. Mature your money for two months. Ask immigration for forms needed for twelve months , and requirements. This gives you time to familiarise yourself with the forms. Too easy...... good luck