@Garrett **********
No,it's not wrong.Maybe you don't read info from your bank/s. One reason for closing an account is "fraudulent or illegal activities". Thats what actually started the suspension mess at Bangkok Bank.There were loads of pre-registered sim-cards which is not alliwed.Then there's mismatched names,and not updated passport numbers when renewing passports. KBank about a month ago warned account holders that if they didn't update their personal info before a certain date,their accounts would be suspended and in the worst case closed. This morning I received an email from Bangkok Bank with a pdf-file showing the latest T&C's,which included official terms regarding phone-numbers.They are updating T&C like 2-3 times a year. Boring as hell to read. I just scroll down to the most important parts,then I delete the email.