Request renaming of account

Hi there,

I'd like to change my launchpad account from "nza" to "zoltan", however it is taken currently.

It's a completely inactive account.
I've tried contacting the owner, but the e-mail address he has is no longer available (even the domain
that hosted the e-mail is gone).

Google tried to deliver your message, but it was rejected by the server for the recipient domain thewebmonster.com by smtp.secureserver.net. [72.167.238.201].

The error that the other server returned was:
550 #5.1.0 Address rejected.

Could you please rename my account?

Thanks,
Zoltan