@Ann68
You will need to roam onto Eir, as they are the only network that still has 3G working (just), as 4G Calling is not available on PAYG, which is now required on Three and Vodafone Ireland for roaming.
Also note if the policy on roaming which is 63 days in 4 months
This is not customer services and we dont have access to your account
I do not work for o2 or any VMo2 /Telefonica/Liberty Global Company
