Keeping O2 Ireland SIM active without any credit

[andy]

Originally Posted by NFH

Is there any way of adding a small amount of credit to an O2 Ireland SIM?

Sorry to be replying a bit late

Some of the new SIMs seem to come with 50 cents to 2 euros on them, so it might be as cheap to just get a new SIM via someone on eBay Ireland

And I think an incoming roaming call every 12 months is sufficient to keep it alive