Ah OK, didn't see your other post. Yes, number changes are ridiculously annoying. I had to do the same myself once with Bangkok Bank. They have to send the change to headquarters, and it also took me 3 tries before the change went through.
sorry, just trying to help. How can a banking app be broken. The app is loading fine for me so it's not having any availability issues. Perhaps your phone is having an issue? Did you try updating the app, or uninstalling and reinstalling it?
In addition to Promptpay, when you open the Bangkok Bank app, you can click "Transfers" then "Other Accounts" (the first option, above the Promptpay option), then select the recipient's bank and enter their account number.
sounds like you don't know what you're talking about, and shouldn't be rude and dismissive of members who post dozens of times daily, thousands of times a year, in various groups, and help probably tens of thousands of people a year with questions about visas and travel to Thailand.
surprised that a member of this group for over a year that should have seen tons of posts from the longtime members here giving helpful advice would say what you said. Especially when such members are having to repeatedly correct wrong information on the consulate websites, or giving real world experiences about enforcement and inconsistency between consulates and immigration.