You need cash credit on your account to pay for international calls.
See here:
https://48.ie/charges/international-calls
Northern Ireland landlines calls using the 048 rather than the 00 44 prefix are covered by membership/call add-on bundled minutes.
I am not a 48 employee - if you need to contact 48 support then please
click here - if the Chat Now option does not appear on that page then keep trying until it does.
