I have no service for the last 24 hours, unable to make calls which is vital for my work. Help

[cs75]

As above stated, my i phone for the last 24 hours does not allow me to make calls or receive texts. Only calls via whats app. I require my phone for work purposes I really need support, but unable to get contact via your platform which is frustrating

[MI5]

@cs75 

Check guide to see where the problem lies.

Guide: How can I sort out my network issues? 

Guide: Is the network down for me or everyone? 

[cs75]

Thanks for your reply, all link you have attached I have tried also removed sim etc and no luck! Why are there no actual people who work for O2 to speak to? Ridiculous 

[MI5]

@cs75 

What did your testing reveal?

You need to contact O2.
Message them on Social Media. Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) or give them a call on 202 or 0344 809 0202