These are two different boosting methods. Account Sharing, also known as Piloting, means that our player will be logging in your game account to fulfill the service. This boosting method is used for services that cannot be completed as a group such as solo questing, leveling, etc. We will never ask for any sensitive account data such as access to your email, we only need username and password. Selfplay means that you will be playing on your own, our players will meet you in game to provide their help.