I had a job offer from a U.S based company in Oct, after something like 5 or 6 interviews, numerous calls to discuss the start date and so on and how I was to b

I had a job offer from a U.S based company in Oct, after something like 5 or 6 interviews, numerous calls to discuss the start date and so on and how I was to be paid. I thought everything was fine, start date was a few weeks out, and so I booked a trip home to see my family, counting on money to come in and help me afford it. As soon as I land, I get an email that vaguely indicates "we might need to reconsider the start date". I get them on a call the next day, and it's all off, they won't have me, and I'm broke. Never trust a company, especially one that's not totally forthcoming.