Your post was blank @johnw1082 and the subject line doesn't really explain the issue clearly.
You'll need to provide a bit more information if you want assistance from the Community Forum.
Whose SIM are you referring to ("their")?
When was it working ok before?
What changed in the meantime?
Or are you (they?) just getting started with 48?
Please clarify exactly what the issue is, what the symptoms of the problem are, any error messages, what steps you/they have taken so far, etc.
If you (they?) need to contact 48 support about this then see the links in my signature below.
