We were just in Spain and ended up changing our trip mid-stream, leaving us with a Vueling flight from Barcelona to Bilbao that we canceled. Vueling gave us an €872.08 credit (versus a refund) valid through Dec 28, 2023 good for anyone to use with our booking email address and booking code. We aren't planning on visiting Spain anytime before then, so the best would be to sell this and for us to get a partial refund on the cost and a good deal for someone else. The rules of the voucher explicitly state that anyone can use it. So does anyone know of a reputable and legit place to sell a voucher like this? Alternatively, does anyone know of someone who might be interested in this?