Winning the DV Lottery does not give you a 100% guarantee of obtaining an immigrant visa or a green card. Sometimes at one stage or another, U.S. immigration authorities refuse to issue a visa or grant the desired status.
U.S. immigration law provides a list of grounds for prohibiting entry to the United States:
Foreigners convicted of two or more crimes for which the cumulative penalty is five years or more are not eligible to enter the United States. The seriousness of the crimes committed is irrelevant for visa denial. A minor offense for which a penalty of more than one year is imposed may also be grounds for visa denial if the offense was committed in the five years prior to the visa application.
Among the reasons for denial there are dangerous infectious diseases, as well mental or physical impairments that may pose a threat to the community or to the applicant. The list of such diseases contains severe acute respiratory syndrome (SARS), tuberculosis (infectious state), leprosy, syphilis (infectious state), chancroid, gonorrhea, granuloma inguinale, lymphogranuloma. In addition, persons who suffer or have suffered in the past from alcohol and drug abuse, as well as mental and/or physical disorders that pose a threat to society, may not be admitted to the United States.
Illegal stay or violation of US immigration regulations
It is illegal to stay in the United States on the basis of visas or documents that have expired. A person who has stayed illegally in the U.S. for six months to one year is denied entry to the country for three years. If the period of illegal stay exceeds 1 year, the alien is barred from entering the United States for 10 years. An immigration violation is any activity that is contrary to the conditions of the visa, such as employment without special authorization from the Citizenship and Immigration Service, exceeding the duration of stay, etc.
Records about deportation
If a foreign national violates U.S. immigration laws, it may lead to their deportation. The deported person will be deprived of the right to enter the United States for 5 years. If the alien goes through the deportation process again, a 20-year ban on entry is imposed. Foreign nationals who have committed serious criminal offences within the U.S. will be permanently barred from entering the country. The same fate awaits deportees who exceed their stay by 1 year and then try to enter the country illegally.
Information denigrating the applicant
Any information defaming the applicant, including information from unofficial sources, such as from former spouses or business partners, may be grounds for a negative visa decision. In these cases, overcoming the U.S. travel ban will require proving that the defaming information is false and removing the applicant's name from the blacklist.
There are no valid social network accounts indicated
The applicant is required to list the accounts on several social networking platforms that they have used over the past five years. You can tell that you don't have any accounts, but if this information turns out to be false, the applicants will face 'serious immigration consequences'.
Incorrect behaviour during the interview
Communication with the immigration officer should take place in the same way as an employment interview with a well-known company. You should behave humbly and kindly, clearly answer the questions asked, do not hide the facts, and most importantly - do not joke. Any unsuccessful or inappropriate answer can be a reason to refuse an immigrant visa. It is better to always answer seriously.