After purchasing Drop.download Premium Key on Drop.download PayPal Reseller. please follow this instruction to activate premium:

1. Log in to your existing account or sign up for a new account at https://drop.download/login/

2. Once you're logged in, go to your account by clicking on this link: https://drop.download/account/

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