Rang up the letting agency, who called me back to ask if I'd be so good as to buy myself a replacement in Argos and present them with the bill, since if they sent someone out on a maintenance call it would cost them £60.
I'm a busy person. I don't have time to go chasing round after toilet seats. This is precisely the sort of thing your landlord is supposed to sort out in exchange for taking all your money.
I said as much to my colleague. "It's a pain in the backside, isn't it?" he said sympathetically.
And I'd been trying so, so hard to describe the situation without using the words 'crap' or 'pissed off'.
Edit: If that's the way they want to play it, I'm totally buying myself a glow-in-the-dark one with a map of the heavens on.