Bug or Mistake in your Description

[Winnermarc7]

Is your Description: Pay only the days you use the bot right? I didn't use the bot lately, due to computer Problems, but my professional key expired. I'm pretty sure last week i had 5 days left, so i'm confused why it runned out. 
I don't care about the missing days, i just wanted to know if there's something wrong, or if you made a mistake in your description.

[Supreme Leader]

no one did a mistake
it deduct only the days used
try deactivating and reactivate again