מי אמר?
מדוע להסתמך על "מישהו אמר לי" יש לארה"ב אתר והכל כתוב בו
ראה כאן:
A visa issued for a single entry (denoted on the visa under “Entries” with the number 1) is valid, or can be used from the date it is issued until the date it expires to travel to a U.S. port-of-entry one time.
A visa issued for multiple entries (denoted under “entries” with a certain number (2, 3, etc.) or “M” for multiple/unlimited entries) is valid, or can be used from the date it is issued until the date it expires to travel to the U.S. port-of-entry as many times as your visa states, provided that:
Applying for a new visa is not necessary if your visa has not expired and you have not exceeded the number of entries permitted on your visa.
Multiple uses of a visa must be for the same purpose of travel allowable on the type of visa you have.
https://travel.state.gov/content/visas/en/general/visa-expiration-date.html
אם יש לך ויזה אינך צריך ESTA ענין איש הקשר לא מוכר לי. הם שואלים אם יש לך כתובת, וגם מלון זו כתובת לגיטימית.