We had long-haul flights booked for September 2020, but it was cancelled due to Covid. The airline said, if we wanted a refund, we would have to wait 12 months for it to be credited to our credit card (no explanation why, other than that it wasn't THEIR fault the flight had been cancelled!), or we could change the dates, but we had no idea when it would be possible to travel again. Also, our flights had been booked on a special promotional fare for business class tickets, at around the same price as economy, but if we rebooked we would have to pay the difference in price, as their promotion offer was no longer available, and the cost would be almost double! So, we opted to have our money held in a 'travel account' by the airline, for us to use when we were ready to re-book. However, they said that we would have to re-book something within 12 months, but here we are are, still with Covid, and travel restrictions! I've tried to contact the airline to find out if I can now get my money refuned, or if they will allow me longer to rebook something, but so far to no avail! So annoying!