This is the best way to get our attention. We spend a good deal of time on the forums at www.wtfrontier.com/forums but nothing that happens there is money related. You can use this form to inquire about purchases, orders, your account or other serious things that need our attention.
For Youtube/Stream key requests: We do usually respond to direct emails, however we're a pretty small team and we are susceptible to getting overwhelmed by requests. As a result we've started using Keymailer to handle requests and so far it seems to work pretty well for us. If you are looking to request a review key, Keymailer is the the best way to reach us, however that doesn't mean we will ignore you if you still prefer to contact us directly.