If you are applying for an immigrant or K visa, you are required to register with the courier company for the return of your documents before your attend the appointment for the visa interview.
Go to https://ais.usvisa-info.com/en-gb/iv and if you have not already registered for the courier service, click on “Register” and follow the instructions.
You are required to enter your case number and date of your appoitnment with the Embassy.
DV applicants, please note, in order for your case number to be recognzied, you must drop the three zeros.
You cannot register for this service until you have received your appointment letter. K visa applicants are also required to pay the MRV application fee after they have arranged for the return of their documents.