See here:
Note that you won't be able to make calls and receiving calls, sending texts and using mobile data will need cash credit to pay for these services.
Also be aware of the following...
Unfortunately many people still seem to have problems when trying to use roaming services for some reason and nobody from 48 has ever explained why or provided a guaranteed fix.
As such, the usual generic advice for roaming issues applies...
If your SIM predates January 2023 then maybe get a replacement in case it helps with roaming issues:
It may be worthwhile reviewing these two threads in case any of the suggestions help to avoid roaming problems:
If you still have problems then you'll probably need to contact 48 support for further assistance.
See the links in my signature below.
If I was you I would have a plan B prepared just in case - e.g. getting a local SIM for the trip or something like that.
