You would need to ask the FFL to see what they are willing to do. They might want to charge a re-stocking fee and refund you money, or perhaps just give your money back. They might be ok with your selling it on an auction or perhaps not.
FFL Transfer/Special Order Dealer since 1993.
Net-FFL list maintainer.
Never try to teach a pig to sing. You waste your time and you annoy the pig. - Robert A. Heinlein