I cannot access BT Sports 2 Extra (Red Button). I was watching the WTA Tennis Final, which was interrupted by rain, and it was then specified that it was available on BT Sport 2 Extra. When using red button it says that there are currently no sporting events.
I have the same problem, although it has been working on BTSport1. The message though, does say contact Virgin to report the error. Let's hope that a Virgin staff member sees these comments and sorts out the problem. When they ask you for feedback on your Virgin experience with customer service, you can reiterate the problem.
I am sorry to hear that you have had this issue, I am unable to check this from our end at the moment due to there being no red button content, We will check next time there is, if you can too and collate our results here we can proceed from that 🙂