I've just purchased a Parallels Desktop for Mac Business Edition license key. When attempting to register the key, I've been able to successfully create my business account, but actually registering the key fails each time. When attempting to register the key, I get the error "The key you entered is not valid. Please make sure you have a valid key and try again. If the problem persists, contact Parallels Support Team." I have ensured that I'm pasting the key exactly as it appears in my confirmation email, and have tried several times to register, each time getting the same error.