Are you sure the mailing is done by the CAA?
I was once told it is done by a separate outfit, which publishes that magazine.
I tried to get the address changed, because the address I then had on G-INFO was the registered office of the company, which was my accountant, and he was getting fed up with having to pass on all the dross that was getting sent to it. But the reply was that they pull their mailing info from the CAA database and can't maintain a separate database - unless I purchase a separate paid for subscription.