I am employed in Thailand with Thai based company. I resigned from my previous employer (Thai based) as I got a better opportunity and gave them my notice period.
However previously I submitted to them my passport for a Schengen visa to the company travel co-coordinator. When I asked for the passport they kept saying it is not with them as it has been forwarded to the embassy for visa processing. But from internal resources I came to know that it was never submitted for any visa and it was still with the employer. When I pressured them to return my passport, they said it still has a valid USA visa (B1/B2) and you cannot enter the USA on this visa for another company to work as it was issued through them.
I forced them to return my passport. But they removed the U.S. visa stamp/sticker which was in it. I asked them for it and at first they kept saying that they didn’t know about it. Later they said they disposed of it as they couldn't allow me to utilize this visa.
Is my visa no longer valid, as my previous employer stated?
If I visit the US Embassy and inform them about the loss of the stamp, can they re-issue a new stamp?
Or will I have to apply for an entirely new visa?