Recruit a friend: How do you summon?

Q u o t e:
I recruited a friend through the 10-day trial but I cannot figure out how to summon him or have him summon me?

Actually, we have a FAQ that answers many questions about the RAF here:

http://forums.worldofwarcraft.com/thread.html?topicId=8557372932&pageNo=3&sid=1#42

To summon your friend, you can right-click their name in the Social tab, or right click their character portrait, and select the appropriate option =).

Q u o t e:
How do you summon a friend who is a death knight now?
he can summon me, but i can't summon him.

Is he through the Death Knight starting area quests?

DKs cannot (and should not) leave that area until they are done with the questlines.

Q u o t e:
bump; same problem

Actually, it isn't. It is best to create your own thread instead of bumping a thread that is fairly old.

Q u o t e:

Account management says our accounts are linked but I'm unable to summon him.

I don't believe that is entirely accurate, Marchio. The account management page may say an account is linked, it doesn't indicate which one.

Q u o t e:

Coincidentally, for a while my (upgraded) account - "WoW2" - couldn't use the AH or do various other trial-limited things, presumably because it's under the same Battle.net account as the separate 10-day trial - "WoW1."

No, I'm afraid you would have been limited by what you could do on the account WOW2 because you used the online upgrade feature, though leveling restrictions are lifted immediately most of the other trial restrictions will remain for up to 72 hours while the purchase processes. It had nothing to do with the other account on your Battle.net.

Unfortunately the account you should have upgraded, the one that is linked with through the Recruit a Friend promotion is WOW1. It looks like you created and upgraded a new account, WOW2, that is not linked to your friend in any way.

Our Billing and Account Services department should be able to help. Please give them a call.

You can call 1 (800) 592 5499 (1-800-59-BLIZZARD) 7AM-8PM (PST/PDT) for live representation.
Australian users should please call 1-800-041-378 if the standard 800 line does not work.