It's been a while since I've messed with bonus domains, but as I recall...
There should be 4 bonus domain abilities under your class abilities - two for each bonus domain you have. One for each domain has Domain Power and Domain Spell levels 1-4 subradials, and the other has Domain Spell levels 5-9.
If I remember correctly, the domain abilities themselves all look generic, don't tell you which specific domain they're for, what the power does, which domain spell levels actually have any spells, and what they are. I think the chat log tells you which is which after you rest, and the feat/ability screen has the domains with all the relevant info on them?
I can't check myself at the moment. I'll try to give better feedback later, if you haven't gotten it from someone else by then.