i have had this for a few days but the My Virgin Media app shows VOD fault in my area (22) at first it said would be fixed by 5th feb at 4pm now it's 8th feb at 4pm, so if you are area 22 this could be why. it's worth getting the app on your phone to see the status for broadband, tv & phone.
if i check the app and it shows a fault i don't have to report it but if it says ok then i report, useful little app that also shows your bills and any orders or appointments you have.
https://www.twitch.tv/ziltoidtv