For every two levels you gain you get 1 bonus level to grant other players. Levels you've gained from grants will add to your grantable bonus.
Your friend can even grant bonus levels to your own characters!
- Your recruit will need to right-click your target character's portrait and select "Grant A Level."
As stated on the FAQ page, a single character that has been leveled as a result of the Recruit-A-Friend process can grant up to 44 levels (previously 42, 40 and 30). This means that it's possible to level two characters up to 90 in this manner (thus earning a total of 90 grantable levels) and thus allow the veteran player to create a new character from level 1 and have the two recruited characters grant him levels all the way up to 90.
Also, because granting a character levels does not affect their progress through their current level, you can use this tactic to bring a brand new character straight to level 91. This is because a character that is at 99% experience in level 1 will be at 99% at any level they obtain through granted levels.
Recruit characters may then grant these levels to lower level veteran characters.
You cannot grant a character levels if its a higher level than the current character. This means that should the new player be level 20 they cannot grant levels to a veteran whose character is level 40.