We would like to change the Publisher ID for the title 2C891 to a new non-existing Publisher ID, while still maintaining the title in the studio. The title is still in development, so it doesn't matter what happens with its current player accounts. The reason is to avoid having player accounts shared with other titles.
I sent a ticket through a "File a Ticket" link I found at the bottom of some page, but I got an email saying it was the legacy system which wasn't actively monitored, and the "Contact us" link on the title page can't be used with the free tier. Is this forum the only way to change the Publisher ID?