Upgraded trial and still can't trade?

Q u o t e:
i upgraded from trial to full wotlk about 3 days ago and i still can't trade
or invite people into parties etc!

I see where you created the trial account a few days ago; however the upgrades were just purchased yesterday, Chazwazza. Yesterday is certainly not 3 days ago. :/

With that said, there are certain trial restrictions that lift immediately upon upgrading: the level cap and the gold cap, which is why you can level past 20. In-game communication (chat, trade, mail, etc.) are restricted until the upgrade fully completes.

Online upgrades generally will take up to 72 hours to complete. Keep an eye on your email as you will be notified when the process has concluded.