I checked their website and there was an email there for which they said one can send them message of inquiries and offer as well. Maybe that is why they have possibly been mute over here but that doesn't stops them from responding to the community because they need the community to patronize their services.
Their website contain lots of information and everything you need to know about what they offer, as so does their medium account especially the FAQ section. The website also have email address for sending inquiries and proposals but that does not mean that they can not maintain an elaborate ANN thread that contain every detail here in Bitcointalk which is where they will even see most of their client considering the number of visitors that do come here.
You are right, they having information on their website is the right thing to do because it will educate visitors on their services and knowing what and how to handle situations. That is the best means to showcase capabilities and strength which is why website it is necessary for organisational growth because the internet and website makes your business to travel far and wide giving you access to more potential client globally who deem it fit to access through the internet.
Nevertheless, FAQ is always an important session in every website because this also helps visitors to go through some possible questions they might want to also ask but with the help of the faq session, there would be easy and their question answered without having any issues.