Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B206 Safari/7534.48.3)
If you have a card with suitable credit limit you could book something refundable, wait for the voucher and then cancel your refundable thing once you've spent £10k elsewhere. I've read others doing that on here but not tried it myself.