I didn't bring it up, because if the call hasn't been pulled for some very odd reason (can't see why), then it would definitely be pulled if I bring it up, which would not necessarily be a good thing and it might cause more problems than it solves. If it has been pulled (which it should have been), I obviously didn't mishear after all, which is the main thing!...it might still go pearshaped, but I'm feeling faintly hopefull.... It's not one of those companies where owning up to potential mistakes is a particularly good idea... Discussed it with a few colleagues who knew about it, and the general consensus was doing nothing was probably the best way forward in this particular case.