Why was I charged 200 lingots today? Is there A CHARGE FOR USING STORIES?
You need to do a bug report.
Who knows.... sometimes there are those glitches in the database. Some time ago my streak jumped from about 180 to 250 or so.....
Stories should certainly be free.
At a certain points you accumulate more lingots than you can spend, i wouldn't worry about it. I'm surprised you're not at that point already with that streak.