Refer to my 2nd link in this comment for info about Classic Era:
You may request a refund. I’m merely posting where you can review the official information as you remarked you “don’t know what they do” as quoted.
What law is exactly broken? Please quote the specific one. Also, this has been addressed here: Account restricted - #106 by Saneko-ragnaros
The exact EULA says that by buying the game it is delivered “as is” and “as available”. Technically, access is granted through gametime to all versions of the game up to your content expansion level.