I want to reassure our customers that we are doing everything we can to fix the issue with our network and say how sorry I am to everyone affected. My teams are working really hard with Ericsson to find a swift resolution. Stay updated: status.o2.co.uk

@MarkEvansO2 @O2 I have a technical issue with paying my bill, my finance team are working hard to rectify this issue as soon as possible. Please accept my apologies for the inconvenience this my cause. For more information please visit www.noservicenopaybill.con #o2down #o2outage #o2OHDEAR

@MarkEvansO2 @O2 No rush pal. Only been 10 hours 🖕🏻

@MarkEvansO2 @O2 How do we get compensated?

@MarkEvansO2 @O2 Thankfully your team still found time to send me my bill today. Not sure turning off the WiFi is going to be much use though 👀

@MarkEvansO2 Hi Mark - it's a long shot - but we REALLY saw a slow down in our campaign to open an inclusive bookshops across the UK today. We shared updates in between meetings - nabbing WiFi. If there's a way you could share the campaign in-house with your teams, we'd really appreciate it.

@MarkEvansO2 Your customers can’t see this tweet because the network is down

@MarkEvansO2 @O2 Blimey, some of you are like vultures. I have been with O2 for ever and can probably count on one hand how many times this has happened.

@MarkEvansO2 @O2 Nice to see your systems are down but yet I still get a txt telling me my bill is ready 🤔

@MarkEvansO2 I can understand outage for a few hours, I trust a company to sort out it within hours, but nearly all day is disgusting!

@MarkEvansO2 @O2 To everyone complaining that the data outage has impacted them due to lost work, I say, if your work is that critical then you’ll have a backup phone / sim... so just use that. No plan B? Well then 24/7 mobile data can’t be that critical to your business.

@MarkEvansO2 @BBCClick It’s been hours. You’re long past “swift”

@MarkEvansO2 I’ve spent 25 years in data networks.. how has your entire network core collapsed unless it’s malicious or negligent? Lack of resilience, processes or security? Looking forward to the post-mortem ☹️

@MarkEvansO2 Why don’t you send a bulk text to all customers to keep them updated? You are quick enough to send them out to sell stuff but not when things go wrong and customer need information.

@MarkEvansO2 @O2 Mate, some of us needs your systems up and going so we can do our work. At the end of the day is a glitch in your system, but a hole in my pocket.

@MarkEvansO2 @O2 Yup...spot on there. Glad I checked

@MarkEvansO2 @MarkEvansO2 is today your worst day at work ever?

@MarkEvansO2 The fact that it has now taken nearly 12 hours with no data or calls would suggest that you don't actually know what the problem is. If you do know what the problem is then you should be able to give a best guess at the timescale. Anything else is BS

@MarkEvansO2 @O2 How much are you going take off my bill next month? Amount of work I lost today by not being able to use data! Garbage service. #o2network #o2isdown

@MarkEvansO2 @O2 Thanks for your tweet Mark. I don’t want compensation etc line others have asked for as this is a one off and may not be your fault. I just hope it’s working soon as my mother is in hospital at the moment so I need the phone line. Thanks.

@MarkEvansO2 @O2 Was kind of ok for a few hours, but it’s been all day with no sign of being resolved. I think your reassurance is somewhat invalidated by this point.

@MarkEvansO2 @O2 You can just reward me by letting me win on priority moments (I’ve never won a thing in over 12 years of service this company)

@MarkEvansO2 Swift Resolution? Pull the other one it’s been 11 hours without calls, texts or data. And no estimated time of repair, just a cut copied and pasted answer. We pay O2 for a MOBILE service not to have to rely on WIFI. Thankful I can start looking for a new reliable provider.

@MarkEvansO2 @O2 I lost calls as well as data up to around 2pm! Why has O2 only told the press its customers lost data? I lost EVERYTHING!!! I changed to O2 this Summer, biggest mistake I've made with mobile phones ever. This is just the icing on the cake! Looking how to get back to VODAFONE!

@MarkEvansO2 @O2 I blame #brexit

@MarkEvansO2 @O2 I assume we'll all be getting partial refunds on our bills this month?

@MarkEvansO2 @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

@MarkEvansO2 @O2 @MarkEvansO2 could you provide an ETA on when service will be resumed please. I understand technical issues happen, but people rely on contact for business purposes

@MarkEvansO2 @O2 What a joke, it has been down all day and I cannot contact my 76 year old mother stranded at Manchester airport, I am fuming

@MarkEvansO2 @O2 Yoooo switch it off wait 30seconds and switch it back on again simple!

@MarkEvansO2 I just attempted another text to a friend, still says message not sent! And has sent multiple texts to friends today when I only sent 1 text they were getting 4-5 of the same one! I give up till its sorted!

@MarkEvansO2 @O2 I’ve not been able to make calls today and getting no network @MarkEvansO2. Not good enough. New Years resolution = get new operator! Bye bye to over 8 years of loyal custom. #getyourhouseinorder

@MarkEvansO2 @O2 Slightly confused? Now lost complete network coverage... not just with data... was at least able to make calls up until an hour or so ago? Meant to be making a long journey by car tonight and now have no access to any phone use if i need it... hope is fixed soon.

@MarkEvansO2 @O2 its not good enough. heads need to roll. the resolution is taking to long. this should have been fixed within 3 hours max. its a critical issue ffs

@MarkEvansO2 @O2 14+ hours without a service I pay for and it wasn’t delivered absolute outrage I hope this will be compensated...

@MarkEvansO2 @O2 Help us out please lads? Been all day now 😃 @O2

@MarkEvansO2 @O2 No service whatsoever not just data. Really affecting our charity :-(