When customers see your offered video previews on your Gbox channel page or your own website, they see a "Companion" window slide in from the right of their browser window, where they are offered the opportunity to sign into their Gbox account (if not already signed in from another Gbox-enabled website) or to sign up for a new account. They can fund their account from the Companion.
Gbox accepts major credit cards, debit cards and PayPal.
Your customers can use one of those options to add money to their Gbox account, and then make a payment for your video.