You can buy a Large Scale Recovery license from an Acronis partner or from the Acronis online store.
Having purchased a license from an Acronis partner, you receive a confirmation e-mail with a registration code. Log in to your Acronis account and enter the registration code in the product registration section. The registered license appears on the Initial Seeding / Recovery tab on your account management webpage.
A license purchased from the Acronis online store appears on the Initial Seeding / Recovery tab immediately after the payment is processed.