H1B Visa : Is it compulsory to make entry in USA only through the H1B sponsor?

[algorithm_warrior]

Hello All,
this is my first post in this forum.
One company called ABC in New Jersy is offering me H1B, While I ma not sure if my H1B will get approved in lucky draw or not, but I have two questions.

1) What is H1B gets approved and I do not want to join, rather I...

[neb2886]

Hi,

My friend applied for an received a 10 year tourist visa about 2 years ago but then switched jobs and was not able to come visit.

Her visa has not expired but she never used it to enter the US.

Will she have to completely re-apply since she didn't enter...