O2 have a conf call at 23:30 so should know more shortly after that...I hope
Last update recieved was at 22:00
"Good evening,
Apologies for the delay in this update email but my call was put back to 9:30pm and the call has just finished. Unfortunately I don’t have any further update on the root cause or resolution time yet, our engineers are continuing to work on this problem on our network that is affecting some of our customers.
Apologies again for the inconvenience this has caused. Please be assured this remains to be given the highest priority possible within Telefonica UK and our network team, I have another call at 11:30pm and will send another update after that.