Your post was blank @MarieL6370 so your issue isn't really clear.
You need to provide a bit more information than in the subject line.
Is roaming connectivity working for you at all?
What sort of numbers are you trying to call?
E.g. Irish numbers, Spanish numbers, etc.?
What happens when you try to make a call?
Any error messages?
If you need to contact 48 support about this then see the links in my signature below.
