visa appeal from outside the united kingdom

If you are applying from outside the United Kingdom (known as 'entry clearance'), you have a right to an administrative review, which is free of charge(no need to pay fees).
You must request a review of the refusal within 28 calendar days of the date the refusal notice was issued.
You can only ask for one administrative review for each application that we refuse. You should not send any additional documents with your request for a review.