What are game slots?
With a Premium subscription, you can synchronize all the characters you have on 3 different game accounts. Each account takes 1 game slot so you have 3 game slots with your Magelo Premium membership. As soon as you synchronize a character from a new account, a game slot is taken, even if you delete the character after.
You can free your game slots once during your subscription in your account management page.
At any time of your subscription you can buy 5 extra game slots. The cost will be based on the time left on your currently active subscription.
For more info please visit the FAQ entry How much do I have to pay for Premium?