I'm going to try and re-produce this at home, so are you saying that if I try and program an advance code to the "7" button in AUDIO mode, it won't work, but in other modes it does work?

I'm sceptical, which is why I want to see it for myself.

As for bugs being fixed, there's not much they can do for remotes that are already in your hands, but if they find the bug they can make sure that it's not re-produced in future remotes.

Rob