They only seem to operation online.
All of these companies and even the independent writers do not use their actual location in their websites. Mostly because they do not really have a storefront or office to actually use. It is this lack of actual location, and easily procured fake addresses online, that make enforcing laws difficult, if not impossible to do. If a writer gets conned and seeks legal avenues to collect, the situation above is what results 99% of the time. Of course it would be different for say, a writing company or independent writer that uses a shared office space. That is their actual business address and law enforcement can come down to that office to enforce the court decision on the "table" that serves as the office of the writer / company.