Some transactions have interest charged from the day they are made (like cash advances) maybe your transactions fell in one of these categories?
Figured it out....even though I usually PIF. I let a small amount report last month. So the agent said that it was accrued interest from 2 months ago.
Oh, well....I owe them ~$4 now. I will PIF and once the AF is about to hit in March I'm going to cancel the card anyways.
Yea it ain't just about the most recent statement or charges. You have to watch out for the December statement as well. Make sure you paydown the whole amount from previous statement.
Capital One good at charge interest with cash advance and such thing so please double no triple check your bill every months for some weirdo interest charge