Você precisaria solicitar um visto substituto e mostrar evidências da perda.
If the applicant loses their passport and visa, or has their passport and visa stolen, they are applying for a replacement using transfer of conditions. There will be a vignette transfer fee for the service. (See the visa fees page on GOV.UK for the current fee.)
You will need to see a police report or other evidence that satisfactorily establishes that the passport is no longer in their possession. This also applies if an applicant had ‘leave to remain’ granted in the UK (excluding on a BRP) and is now applying to have it replaced overseas. See Biometric information: case working for further information on replacing a BRP lost overseas.
If required, you may ask for supporting documentation to establish that their circumstances have not changed. ECOs should use i-search to obtain information on an applicant’s leave granted in the UK. If information is not available on i-search you must make a referral to Evidence and Enquiry Unit.