What a co-incidence I was on sammobile yesterday for another reason and spotted lollipop ROMs.
I live in the UK and was a little bit miffed that those on Vodafone are getting the update officially before those with unbranded/SIM-free phones. I am begging to wonder exactly what sammobile mean in their country list, i.e. is it the target country or just where they picked the ROM up from. Anyway after some research I thought I'd try the one that does not have any carrier name against Poland as, from what I have read, this should actually be the "Open Europe" version. It works for me but that is obviously not a recommendation that you try it.