Not sure why this account is unable to add real ID friends, there is no pending tab and when I hit add friend there is no information about real ID or anything.
The account is obviously upgraded to WOTLK (I am posting from a DK), so I don't understand what the problem could be, thx.
Shandiee and Kalizorm appear to be correct, Aenemaa. You have Parental Controls active on this account. You can recover the parental controls link by visiting the following link.