So lately blizzard has been taking 3-4 days to upgrade accounts from "trial" status even when entering the keys directly from the box
this sucks for trying to create 2 new RAF accounts that are both bran new because you cant invite eachother to group
here is a little trick we used (might be obvious to some but I didnt think of it right away so maybe not)
Log onto an account that is already full active and add both RAF accounts on realid
invite them both to group, and then leave group and the 2 "trial" accounts will remain in group together and can even summon eachother even though they still cant speak in chat or trade etc.
So far we are nearly level 40 and running dungeons but both of us are still "trial" status (even though both of us are MoP upgraded all the way)
enjoy!