See here:
If you opted into The Guido or 100GB or Unlimited Data membership then you can make and receive calls, and send and receive text messages in the same way you do when at home in the Republic of Ireland. Similarly, you can also use some of your data allowance while roaming in the countries listed above. Click here for details.
Also, this:
If you need to contact 48 support about this then see the links in my signature below.
