Looking for the best website to sell my ticket

Unfortunately I won't be able to attend the Monza race this weekend anymore and I have a 3 day ticket that I'm hoping to sell (not trying to make a profit, just what I paid back). Ticketswap won't let me list it more than the price on the ticket (which is €630) but the official f1 ticket store charges me 947.50 for it. Open to suggestions where I can sell it, please help.