If your Schengen Visa application has been declined, and you have the reason to believe that such decision has not been justified, than you should draft and submit Schengen visa refusal appeal letter.   Schengen visa refusal appeal letter is written in a form of a simple letter, in which you should state why you think that Embassy has made a wrong decision to issue refusal letter to your application. Most of the Embassies of Schengen states (as of today) do not have a standard for of Schengen visa appeal letter, so you can use a free form. Please bear in mind that you should provide proper evidences to support your claims and they should be attached in the enclosure of the