Nvm, Blizzard has changed this, apparently it was a minor glitch with some keys.

 

Thank you for telling us, I was going to buy one o_o, Apparently they sell for a huge ammount.

 

There might be a difference in EU and US, but me and my friends happily put our beta keys on the accounts with most lvl 70s, and there has been no problems whatsoever.

This is in EU btw, but i highly doubt that its any different in US.

Though with that said, i dont think its a good deal buying betakeys as of now since 3.01 patch hits ptrs today. (New talents, inscription etc..)

 

Thankyou so much, i was going to buy one too

 

Works in EU, Can confirm bought one for £150 of eBay.

 

It works in the US also... my friend gave me his WOTLK beta key... but then I got one also...

Maybe something changed over time O_O

 

This works perfectly fine in EU..
It's not bound to any account at all.

(By the sound of it, it looks like you tried to use 1 key twise..)

 

Ok, nvm, blizzard has changed it so now US can be used with any account. That's good news now though