I am Egyptian. I've applied for UK visa in October 2015. I got rejected. However, I only got a stamp on my passport, as per my travel agent, I didn't receive a official rejection letter. I am not sure if this is correct or not, despite, I would like to request a copy of my rejection letter as I've applied for a Schengen visa at the Swiss embassy and they have requested that I should present my rejection letter, also, I would like to have this letter for my own records. I've sent an email on the website of UK embassy. And I've just received a response to make a subject access request for information using this link https://www.gov.uk/government/publications/requests-for-personal-data-uk-visas-and-immigration
However, I am not sure if this is the right process for my case. Please confirm. If yes, Is it only the standard subject access request form which I should fill in or should I fill in additional documents?