WORLD MIGRATOR
VISA & RESIDENCY AUTHORITY
What the two most common refusal grounds actually mean and what you can realistically do next.
What the application fee covers, which categories cost more, and how your nationality affects visa validity.
Who must attend an interview, how appointments are scheduled, and when an interview can be waived.
What each section of the online nonimmigrant visa application asks for, and the mistakes that most often cause delays.
The full nonimmigrant application route — DS-160, fee payment, appointment booking, interview and passport return.
Nonimmigrant and immigrant visas, who each category is for, and how to work out which one matches your trip.