Your post was blank @SharonM5378 and the subject line doesn't really provide much information.
When was it working ok last?
Did anything change since then?
E.g. new phone, settings changes, software update, factory reset, returned from roaming abroad, etc.?
What do you mean by "no network"?
No connection to the 48 network at all - i.e. no signal bars?
If so what happens if you do a manual search for networks?
Can you see and connect to 48?
If you do have a connection to the 48 network is anything working at all?
Incoming/outgoing calls, incoming/outgoing texts, mobile data?
Any other information that might help to diagnose the problem?
If you need to contact 48 support about this then see the links in my signature below.
