This is driving me bonkers...

I have 1 full paid account. I created three more free 10 day trial accounts. I was trying to create a 4th, and I got an error saying I could only have three free trial accounts. So , i set out to buy one. FFS, I can't find any upgrade online option anywhere?

You would think they would put a button in the account management page, let you pay, and give you a key... but I can't find that anywhere. All it says is to buy a retail copy and get the key. I went to blizzards online store, you would think they would provide that there. But the only thing is a Burning Crusdade online upgrade, when you try to do that, it says you have to have the classic copy first... so round and round I go.

I looked in my paid account to see if there was an option of adding additional accounts, nope, couldn't see that either?

Do I really have to drive down to the store to buy the freakin box for a key??? I must be missing something, please enlighten me