How to cancel an empty Norton account

Hi!

Maybe I am wrong in this place...

I have an account which contains only a no further actual test installation (that was a mistake). I want to cancel it (e-mail address removed).

I have another account which 3 valid installations (e-mail address removed) which should be active in future. I do not check this mail address very often, so I want to change the address to the other one (e-mail address removed.). But this is unable, because the other account exists.

Please tell me how to cancel this mistaken account (e-mail address removed).

Thanks a lot

Reinhold Kammler