It could be an issue. It is your burden to prove you are the person who was selected and confirm your identity.

You may be required to submit DNA testing. It will be up to the consular official whether the documentary evidence is sufficient. You should be...

A lot more information is needed to assess your question. I encourage you to either speak with your employer’s immigration lawyer or schedule a...

There is no deadline to issue a decision. A decision is typically made in 120 days after the interview.

You can travel on your valid B-2 visa while an H-1B amendment is pending.

As a general rule, it means you should have applied for asylum in a third country through which you traveled.

If you want to travel, yes, you should request a travel document.

You simply need to indicate what has happened already. Just provide the timeline of events.

You can find a port of entry at https://www.cbp.gov/about/contact/ports.

You can sue them in the appropriate civil court. The bar association may also a fee dispute section that you could use to arbitrate.