Cancelling an account?

I bought Guild Wars yesterday and made an account and while I was logging in today I realized I'd misspelt my account name. I know it's not a big deal but I'd rather have my account spelt the way I want it to be spelt. Anyways, I was wondering if there was some way I could cancel my account so I could make a new account with the CD-key I have. It'd be silly if I had to buy another CD-key just for misspelling my account name. I've already messaged the support on the website but I thought I could get a faster response by posting here.

I believe you can change the email address that you used, just retype your misspelt account and change it from *EDIT Account* at the character select screen.