Thanks for posting on our community forums. Sorry to hear that you're currently experiencing issues with our mobile services. We are aware that there is an issue currently where some customers are unable to receive incoming calls, text and cannot listen to their voicemails.
This issue has been reported and we are working on a fix for this. In the meantime, please check the link here, to see if this gives you any further help and support, whilst this issue is being looked in to.
Sorry for any inconvenience caused due to this issue.