ANZ Bank in Hong Kong is also denying services to Americans. They have identical text to the above, but it substitutes "ANZ" for "RBS".
And the Canadian Banker's Association is warning US Person's about the legal consequences of being American:
I am a U.S. person. What does FATCA mean for me?
If you are a U.S. person, you may be asked to complete IRS Form W-9 (Request for Taxpayer Identification Number and Certification) which will be kept on file at your financial institution. You may also be asked to provide consent to your financial institution to provide the IRS with personal and account information.If you do not complete IRS Form W-9 or provide your consent to disclose information to the IRS, your financial institution maybe required to withhold a tax of 30% on any U.S. source payments1 that you receive and send this money to the IRS. Also, your financial institution may refuse to open an account or may be required to close existing accounts.
I've actually been finding a lot of these running around.
This is not discrimination: this is self-protection. All the bank has to do is misidentify one financial transaction which is "US source income" and they're subject to a 30% financial withholding of all US source income and they'll have to file paperwork with the IRS to get the money back, even if they have no business in the US. This could potentially bankrupt financial institutions who accept Americans.
I'm still unclear how making life harder for Americans abroad helps Americans at home.