Your post was blank @paulm2108 and the subject line seems to be truncated and doesn't contain a lot of information to go on.
If you want assistance from the Community Forum then you need to explain/describe your issue clearly and in detail.
When was mobile data working ok for you last?
Are your APN settings configured correctly?
What sort of download/upload speeds are you getting using an internet speed test app or website?
Do you know anyone else in your area on 48 to see what their experience is?
Can you try your SIM in another unlocked phone to see how it works there?
Maybe try a replacement SIM to see if that makes any difference?
If you need to contact 48 support about this then see the links in my signature below.
