Making sure that all of the information on Form I-20 is correct and corresponds with the information in other application documents is crucial. Any incsbte biharonsistencies may cause the visa application to be delayed or possibly rejected. Students must fill out the online non-immigrant visa application form (DS-160) and pay the SEVIS fee after receiving the Form I-20. After this, candidates should make an appointment for a visa interview at the closest U.S.