Check your internet settings.
If the APN field is not set to 48months.liffeytelecom.com then set it to that, save the change, switch airplane mode on and then off and see if data works.
If it still doesn't then you'll have to contact 48 support tomorrow.
Many people have had this problem with data while roaming in the EU on a Guido membership and that tip has fixed it for many but not all of them.
I don't know why this problem happens and unfortunately 48 support still haven't explained or fixed it.
Hope this helps.