I've activated my SIM but it's still not working. What should I do?

Work through these causes:

• Account. Check your line shows Active in your account, not Paused or Ending.
• Settings. Restart, then check the APN is gamma. That’s the usual culprit on iPhone.
• Network. There may be work in your area. Try somewhere else, or check again later.
• Phone. It must be unlocked and support 4G calling. See Do I need to unlock my phone?

Still stuck? Contact us and tell us what you’ve already tried.