How do you have a free trial not limited in World of Warcraft

Blizzard recently changed the way that the free trial accounts work. You no longer have a limited amount of time to play, you can play forever, however, you can only play to level 20. Once you reach level 20, you can either continue playing at that level earning no experience, or make another character.

You will not be able to use the public chat channels like trade, general, city. You will not be able to whisper anyone unless they either put you on their friends list or whisper you first.

You will not be able to use the AH, or trade with anyone. You will only be allowed to make 10g.