| Was flying from Orlando to San Diego back in Nov 2019. Boarded the planE and sat on the runway for half an hour while maintenance came to check out an issue. Cool, they are fixing the problem. Maintenance left and we took off. Cool, they must have fixed the problem and sent us safely on our way. I'm going to sleep. Wake up 3 hours later to learn that we have been flying in circles over the gulf of Mexico this whole time because the problem wasn't fixed and we needed to burn gas to land back in Orlando. Took them 4 hours to then find us a place to stay, rebook us and provide us with a voucher. Not too cool, but they took care of us a little. The voucher provided required me to book a flight by May 2020. Then COVID hit, and I couldn't plan on traveling anywhere. Surely Frontier would understand this and extend the expiration date of my voucher. Wrong! It doesn't matter that I literally couldn't plan on booking a trip between February and July, since I didn't use that voucher by May I lost it and Frontier refuses to make it right. We have seen companies do amazing things to ease the impact of this pandemic. Frontier is not one of those companies. If Frontier is one of the airlines that makes it through this, I won't be giving them any more of my business.