again what right do you have more then a tourist ? Or a tourist with elite visa, and for your post the bank have all there right to do this, you can do nothing .
if you get more right as an tourist it is, like i say i have thai family's work in immigration in Thailand, and they see it as a longer tourist visa nothing else.. but many falang thing they have more right.. 100% same rules for you and a tourist, even a tourist can make a business account, if they present them self as investors.. you cannot vote you cannot buy land own 100% your own company, only if you invest 40 mill. just tell me one thing you can more then a tourist, Elite VIsa 5 years is also a tourist visa, just longer... here you get bank account, 5 years to stay in thailand,
you do not have right if the bank not want you they can decline, it is not a right it is a possible you can have,, I have both company and private bank. Credit card and more and atm to my company I do only own 49 procent, I cannot make atm for payment to company sales, only Thai can by law, scb have now also restricted app for Falange busniess app only web site, my lawyer I have ask it will be like this in future because of scam and new bank rules all over Thailand