Hey Bob NO6B: if you want to suggest "removing Bomar from the crystal suppliers list" you need to contact the person listed at the top of that "suppliers" page. Clicking his name will bring you to a contact page.
It's likely that not every one of their customers has had a bad experience; so it might be doing a dis-service to those if the entry is removed. It's probably kinder to find reliable alternatives and add them to the list.
Bob M.