Klmn, I did extension of visa for my parents and they were never called for fingerprints. Is this new rule. By the way Bennedict may have answer to my question. I was trying to renew my parents visitor visa via drop box but it seems they are ineligible as they filed for extension of stay in USA. Since US embassy is close for non immigrant visa, any idea where can I email to request waiver for interview and use drop box system. They had already done drop box extension once in 2016 but US embassy is not allowing this time as they had file extension of stay although it was approved by USCIS.