Smart offer a 7 day support but reall its more like 10 days because thats how long you'll be waiting for a reply back from them.
I was looking for the address of thier smpt thingy and they gave me the wrong 1 3 times. I eventually figured it out myself using a combination of what they gave me. It seems as if they guess answers to your problems and eh..... see if that works !!!!
I hope they sort themselves out as it'd be nicce to have an alternative to eircom rather than buying eircom from a third party.