Boostability Copywriter interview questions

This is a long one. They called one Friday morning around 9 am to set up the interview for the following Monday. I spent the remainder of the day calling the two numbers I was provided trying to reschedule for Tuesday due to travel reasons. I left multiple voicemails and emails withing business hours. No response. I fly a redeye to Utah on Sunday night, not knowing if I need to come in for the interview on Monday. I finally received a response 3 hours before my scheduled interview time, and thankfully rescheduled the interview. On Tuesday morning, I get a call saying they had filled the position and I no longer needed to come in. Somehow, between when they called me to schedule my interview (Friday at 9 am) and the time when they canceled the interview (Tuesday at 9:30 am), they had filled the position. TL;DR: I spent $700 on lodging and airfare to come to Utah for an interview. They canceled my interview on the day of the interview, saying they had already filled the position.