3 hours ago
2 hours ago - last edited 2 hours ago
When was it working ok last?
What changed in the meantime?
Are your APN settings configured correctly for mobile data to work properly?
You might need to contact 48 support about this to see if they can shed any light on it.
Do you know anyone else locally on 48 to see what their experience is?
Can you try your SIM in another unlocked phone to see what happens there?
Maybe try a replacement SIM in case that helps at all?
If you need to contact 48 support about this then see the links in my signature below.