"Do not have permission to join guild"

Q u o t e:
unless im stupid, I dont belive you can hit 59 on a trial, but the term WotLK trial worries me that i am wrong.

You are not wrong.

Although if you create a new account and upgrade that account online and then transfer a character from your other account to that newly created and upgraded account, it can still retain the trial account restrictions for up to 72 hours which will be applied to all characters on the account. Including the high level character.

I'm sorry, Supercharged, it looks like that it what happened. Trial accounts upgraded online will retain their trial account restrictions for up to 72 hours if upgraded online, though the leveling restrictions will lift immediately.

Once the payment has fully processed your characters will be given full privileges once more. I'm sorry for any confusion that may have been caused.