Thank you for this great forum! I have a question: my husband's DV2020 entry was selected. In the entry, he included his first name, middle name and only one of last names (he has two last names). He thought that because the field of DV entry application had the name "Last name" (in singular), that he should not put both last names in the same field. He had numerous U.S. visas issued under his full name (with both last names) but his SSN also has only one last name. How serious this mistake can be?