Your post isn't really clear and you'll need to explain your issue/question more clearly.
What exactly do you mean by "network codes" and "get my data and calls fixed"?
What's wrong with your data and calls?
When was everything working ok for you last?
What changed in the meantime?
What exactly is/isn't working?
Do you have a connection to the 48 network - i.e. signal bars?
If not then if you do a search for networks can you see and connect to 48?
If not then what happens? Any error messages?
If you do have a connection to the 48 network then what exactly works/doesn't work?
Incoming calls, outgoing calls, incoming texts, outgoing texts, mobile data?
If anything doesn't work when what happens when you try to use the relevant service?
Any error messages?
For mobile data are your APN settings configured correctly?
If you need to contact 48 support about this then see the links in my signature below.
