So aye, I've still had zero contact from Cloud Hashing. I'm currently £700+ out of pocket as they haven't registered my contract, and they appear to be ignoring all e-mails and even Facebook messages (despite the fact that they're still periodically updating their Facebook page).
Pretty pissed off and have sent the information away to Google Checkout. I've also tried to contact the user "cloudhasher" on here with no reply.