This is the message I received from the official bank:
Please be advised that we are aware that customers and non-customers are now regularly receiving 'scam' or 'phishing' e-mails, sometimes alleging to be from HSBC Bank.
These e-mails try to convince the reader that they are due to receive a large sum of money in return for an advance payment to cover administration costs. Any such e-mail will not, despite appearances, be from HSBC Bank and should therefore be deleted immediately. Our IT security department are already aware of this type of message and are currently undertaking action to protect our mutual interests.
Further, please note, you should never send funds to anyone who says you will receive a money prize in return.
You may wish to review our current security guidance on matters such as online fraud and "phishing", by clicking on the link "Find out what we do to keep you secure online", which is available at www.hsbc.co.uk/securitymatters.
Please note that it might take up to 48 hours for us to reply to any messages received through this service.
For immediate resolution required on any account specific enquires, you have the option of contacting us through ' Live Chat ' available between 07:00 hrs to 23:00 hrs UKT throughout the week.
Log onto On-line Banking
Click on the "Help and Support" link on the bottom of the page.
Start a new chat from the box on the right hand side of the screen.
Internet Banking Customer Support
HSBC Bank Plc
Telephone: 03457 404404, +44 1226 261010 (International)
8am to 8pm everyday (except Christmas Day, Boxing Day and New Year's Day)
HSBC Bank plc
Registered Office: 8 Canada Square, London E14 5HQ.
Registered in England - Number 14259.
Authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority.