Frontier Airlines review: Poor excuse for an airline

We had reservations on Frontier for Florida and I had also decided to apply for their credit card for future flights. Unfortunately, a few weeks before the trip, my wife had to be admitted to the hospital for a major heart operation. The worst part about Frontier is you cannot ever get help on the phone. You must communicate only by chat. I was told to supply a letter from the surgeon which we did. After much back and forth with Frontier, it became clear that they never intended to reimburse me. I was even willing to leave the payment and reschedule when my wife was up for travel.
To be sure, I will never have anything to do with this terrible idea for an airline. From what I have read, I am not alone. Be aware!