Extra Character question

[Crica]

Everything (account and character slots) must be re-activated (if they already exist) OR activated (if you want to create one) for it to be charged now and have re-occurring charges from now on.

As long as you never hit "re-activate" button for a character that is already created which you DON'T want to play OR "activate" button for a character that you want to create, then it won't be charged, nor will any characters that are already created which you DON'T re-activate be playable.