My phone wont make or receive calls and says NOT REGISTERED TO NETWORK ....any useful advice please.

[SmartyG]

Everything else seems ... all accounts seem fine ... no issue as all accounts paid ... just wont accept or allow outgoing calls ... NOT REGISTERED TO NETWORK is all it says ... I've been with Sky for over a year !!@

[caesarome]

If it has been working then it might be the sim that has developed a fault so it might be worth ordering you a replacement:

https://www.sky.com/help/articles/replacement-sim

[Mr+Flibbles+86]

Hi there, I have escalated your post to our Community Messaging team who will invite you to a private chat shortly and help you with this.  

Just look out for the blue bubble to start the conversation. 

Here's more information on how Community Messaging works - https://community.sky.com/t5/Did-you-know/Escalating-a-post-to-a-Sky-expert/ba-p/3711147  

[Mr+Flibbles+86]

Update – We are still looking to help you. If you need our support let us know and we can re-escalate to our chat team. Your invite has been closed now. Thanks