Det finns ett annat giltigt sätt - fyll i en andra DS-160.
Det finns andra online med samma problem, och en som heter USA Ambassaden att kontrollera :
I called the London Embassy to confirm that filling out another DS-160 wouldn't produce any problems, and they said that there is no way to retrieve an application ID and that filling out another DS-160 is the only solution. They also said that it would be the same if I had made a mistake on my application and needed to fill it out again and I had forgot my ID.