Yep. I had a company in the Bay Area fly me out for an interview explaining that they'd pay all expenses (as is common). They made me an offer and I went with a different company. They completely ignored my expense submission (they indicated how to submit this previously...basically just send them photos of the receipts and they'd send me a check) and ignored me after I let them know I was going with another offer, so I was stuck with ~$300 in taxi bills (SFO <-> South Bay gets pricey real fast in the days before Uber).
Really really glad I didn't end up there.