Missed calls even though phone never rang

[ClaydonKing]

Hello, 

I was wondering if you can help me. Occasionally my phone shows me a missed call notification from my contacts but the phone never rang. When I call them back they said they get the message " this number is not available" it doesn't divert them to voicemail or even ring their side. Anyone any ideas what that could be ? 

Thanks 

[Beth]

Hi @ClaydonKing! We'd be happy to take a closer look with you so we can get to the bottom of it for you. To get started, please pop our Social Media team a message here 🙂