Why not advertising how much has been raised to date on the website to let people know, and build on that success to continue raising more during the last 3 days left?
Someone already asked it on this thread and the devs are able to reply in their telegram channel. The devs said, they have some purpose and valid reason why they are not showing the current scenario of their ico. They will just update is from time to time that is why there is no reason to be worry.
for sure they have reason why they won't show how much they've raised in the ico, though its not something new, there are lots of ico nowadays that does that same thing. I suggest you keep in touch in the telegram channel, so that you'll be updated.