Hi ninsaga,
I found out about Euphone through this web site!! Their TalkNow package was mentioned. I found out some more about it, gave them a call, they forwarded me the relevant forms and I signed up. I wasn't asked who referred me. If you look at their web site [broken link removed] you'll see that you can join by just calling them!!
Thanks to ClubMan I phoned Comreg and they gave me an eircom number to call (1800 200481). I spoke to a guy called Tom who took down the details and said that I probably hadn't been removed from a database when I transferred. He said that somebody would call me within 3 days with an explaination of why I was called, but I told him that Comreg told me that I should receive a letter within 10 days. He has agreed to do this. I'll let you know what this letter says.
As a matter of interest, does anyone know how telecom companies are punished if they have breached the 3 month rule??