The Visa Application Form (VAF) number is a 7-digit number that is assigned to each visa application submitted to the UK Home Office. It is not the same as the visa number, which is an individualized number pertaining to the individual visa. The VAF number can be found on the top right of the front page of the refusal letter. It is also mentioned on the visa vignette, which is a UK entry clearance sticker inside the passport of those approved for entry to the UK. The VAF number is important when communicating with the Home Office regarding a visa application.