Outage Update: One of our 3rd party suppliers has identified a software issue in their system. Our technical teams are working extremely hard to resolve this. We'd encourage you to use Wi-Fi wherever you can and we are really sorry.

@O2 @O2 I will admit, had a few giggles today reading some of the negative comments made by some people. Working in IT myself, I have full support for you guys as I know how stressful it is when a service goes down for so long affecting loads of people. Good luck! #o2down

@O2 You better alter my bill after all this shit, a whole day at work with no WiFi connection... smh

@O2 Ah the blame game. Pin it on a nameless thirdparty and absolve yourselves of any accountability. Just like when customers complain about your terrible coverage. Blame the customers not your antiquated infrastructure!

@O2 You obviously don't use my office wifi or play Pokemon Go. On a serious note, I know technology is unreliable. Hopefully, all the hard work will pay off!

@O2 Any update cause this it’s beginning to be a joke now?, I pay good money for a service which now I can’t use.

@O2 It's not just data. My texts say they won't send, even though they do and I am receiving the same texts multiple times. I hope it's all fixed soon.

@O2 These things happen .. it can't be helped. However ... as a Pokemon master ... it's my destiny to "catch 'em all" and a whole day of no data could mean there are dangerous Pokemon on the streets ... with your customers. Please fix it ASAP ... somebody think of the children?

@O2 When will it hopefully be back working ? X

@O2 To be honest only had a handful of issues in the 14 years with O2, so that’s not too bad, hope it’s getting solved soon. Good sign that 3G seems back again.

@O2 How much longer is this gonna take i pay alot for my contract and i get this problem and no phone calls messages or data this really needs to be sorted 😡

@O2 Any idea how much longer it's going to be as it's near 14 hours now

@O2 No that’s fine @O2 but just note that im going to sadly be having a “software issue” when it comes to paying my bill next month .... O2Network / NO2

@O2 Hey @O2, I can’t make phone calls either.

@O2 Ah, the old “just use WiFi” advice from @O2.

@O2 Thank you for pinning a Tweet on the outage; I think you should post an update on the O2 home page too. Can I note that when I called customer service about this they didn't know what the O2 Twitter handle was, or the address of the Service Status page (status.o2.co.uk)

@O2 Stop passing the buck and give me a refund!

@O2 As a network technician myself, I bet your lot are really feeling the pressure today! I hope all the tech guys working on it are being fed constant coffee ;) Keep up the good work to get us back up O2. I feel like someone at said 3rd party supplier may be getting fired today.