Works fine from my side. I guess you might be on their restricted country list. I checked their terms of use and there wasn't much to read actually. I couldn't find the list of specific restricted regions.
Has to be. I've tried on different devices and different browsers which are not using the same network and it's still unable to connect. If it is a restriction based on location, it will be best if it reflects that on the screen as many casinos do rather than it looking like a connection problem.
You are right. This is a must feature every gambling/casino sites should include. Because what I have observed many times, is that certain sites that doesn't allow services (as per their T&C) in specific regions still lets users access their site from that region. So if that were the case, and if a user were to let register, he would certainly get into trouble later. A warning message would clearly discourage a user from registering or accesseing the site from a restricted region. Anyway, I won't be going into specifics about the sites I indicated above. And as for this feature, I think I have seen it in Bc games (not completely sure though).