My visitor visa ran out today. I am a uk citizen staying with canadian boyfriend and needed to extend my visa by another 6 months so that we could apply fship. Dor spousal/common law sponsorship. Due to stupid oversight i thought my visa expied next month and just realised it was this month. Can i still apply for an extension or will i be declined now dueor to overstaying if even for just a few weeks. Any advice appreciated thanks.