10 Day BC and WotLK

[[Blackstorm]]

I have a second vanilla acc, I can activate BC on it. When I activate it, can i activate the WotLK trial with it too?

If I can, what will happen? Like, 20 days of WotLK, first 10 days of wotlk, only 10 days of wotlk, etc etc

[Forgiving]

If the bc is a trial then you can not activate wotlk to it as well.

[kingofrock]

You must have a full version of both the original WoW and TBC expansion.