Quote Originally Posted by darren-b View Post
Legally you shouldn't now use your Philippines passport as you are no longer Filipino - you lost your Philippines citizenship when you became British. If you attend a Citizenship ceremony at the Philippines embassy in London they will actually cancel your existing Philippines passport. In fact your ILR visa is no longer valid either.

But you are unlikely to have any problems if you use it.
In my knowledge you'll only lost your Philippine Citizenship after the expiration of the current passport because as long you've had your Philippine passport before you became a British Citizen but ofcourse now Im not sure since I read your post..

But I agreed on your last sentence