It's nonsense to print two copies of online contributions and send them over, and the electronic version needs word2003.
Although it is a core periodical or something, it is better to subscribe to other periodicals. It is ok to give them a proper page fee, but don't you think this price is a bit insulting to your paper? Don't you think your efforts are insulted?
Their official website: journals.net/ch/index.aspx, for reference.