How to change my e-mail address for build.o.o

There are several threads asking this very same question. The latest I found was this one: https://lists.opensuse.org/archives/list/buildservice@lists.opensuse.org/thr.... However I still do not find an answer to that question. What I tried: - Going to my profile on build.o.o and edit my profile: The e-mail address is not editable. - Change the user meta via `osc meta user -e letsfindaway`: Does not change anything. - Login to Micro Focus and try to edit my profile there: The e-mail address is not editable. So what is the way to change the e-mail address listed on my profile in build.o.o and used to send e-mail notifications? Thanks for any insights and pointers! Martin