change email address

I have requested to suse-amd64-owner to change my email address. I have made the same request 10 times. I have followed the instructions on the bounce message to a 'T' to make the request. I have not seen any changes made, nor have I gotten any response. Is there something else I can do? unsubscribe the old email and re-subscribe with the new one? Please advice me on how to proceed. Thanks B-)