WE booked a flight from san Diego ca. to Las Vegas on Jan. 3rd.2020 for travel on or around my birthday 2/18/20. Later in Jan. I was diagnosed with kidney cancer and had to cancel flight. We got vouchers, we called on July 3rd 2021 and was told they were no good. And no refund. I have a letter from my Dr. saying I was having surgery on the 13th of Feb. 2020. There is no way I could fly. My letter is in PDF I don't know how to send it to you. Other than by e-mail. I don't think it fare of you to keep my money for no services rendered. Confirmation number is #SX2T8N. Talked to Tayler on twitter yesterday but no one at twitter today to chat with.