Update: Our technical teams have started to see 4G service returning to our network. We're hoping this will be fully restored by 3am this morning. We’ll continue to monitor the service and share any further updates on status.o2.co.uk

@O2 It’s not been a great day for O2 but I hope you’re checking that your customer facing staff are ok after what I can imagine has been a day of abuse & blame aimed directly at them by some O2 customers (even though it’s absolutely not their fault)

@O2 Texts not working

@O2 Well mine still isn't working

@O2 Then why do all my text messages say not sent still ?

@O2 I have heard people are being compensated £75 for the inconvenience is this true???

@O2 Still no data!!!

@O2 SW19 back to normal

@O2 Don't think you're fully restored yet! I tried to send two texts at 7am this morning. Neither delivered. Had to resort to hotel WiFi and send WhatsApp instead.

@O2 I’ve only got 3G?

@O2 Help me to unlock iphone am out UK plz

@O2 Have you traced the source of the attack? #o2down