If I were in your position, i'd be querying why Capital One are charging £145 for a card you "never use"?
Never being a slight overstatement, I used it when I first got it... But, see below.
I imagine he used to use it and never quite finished paying it off ...
Yes, this, exactly this, it's had the bare minimum to cover by without going into the collections department but this only happens every several months when I get a random phone call to tell me and I always put it off to clear it.
Thank you all for the advice, much appreciated! Lesson well and truly learnt, luckily on a small scale and not thousands!
ags