After purchasing Share-Online.to Premium Key on Share-Online.to PayPal Reseller. please follow this instruction to activate premium:
1. Log in to your account or sign up new account at https://share-online.to/login
2. Make sure you are logged in, and access to your account by access this link: https://share-online.to/?op=my_account
3. On the account page, enter premium key in "Apply Premium Key:" field, then click Apply button.