Why did you dispose of the old card before receiving the new one? ¯\_(ツ)_/¯
Anyway..the number on the atm card is the account number, maybe you can get it from some statements?
Well, for a start I don't seem to have an internet banking password. :-| I was going great guns yesterday during the registration, until the final hurdle, when I was asked for a number on the bottom right of my destroyed card.
Anyway, I'm going to take emx's advice and go to HK. Haven't been there for two and a half years, so it's about time. Many thanks to all who replied.
You should report lost card by calling 2233 3000, there should be an option for that. Someone should answer immediately without you having to provide too much information.
Just wondering, did you inform HSBC of your new address in Thailand? If not it may be difficult to sort out on the phone anyway. Much better if you can travel to HK for a few days. May also be worth checking that your branch is still open, a few are closed now following "vandalism".
Yes, I informed them. I've been in Thailand over eight years. Was booked to travel to HK on Sunday (from Koh Samui) but all direct flights are now cancelled until Oct 25. However, I did find a workaround as my wife left her security device behind when she left for the UK and, as it's a joint account, I can use that to access all the functions that were locked on HSBC's site, such as email.
Thanks again to all who replied.