After purchasing DDownload Premium Key on DDownload PayPal Reseller, please follow this instruction to activate premium:

1. Log in to your account or sign up new account at https://ddownload.com/login.html

2. Make sure you are logged in, and access to your account by access this link: https://ddownload.com/?op=my_account

3. On the account page, enter premium key in "Apply Premium Key:" field, then click Apply button.