Maybe it's me....but I cannot see ArrowChat at all. I've tried it in the past on both browsers, even going to the extent of signing out of the site and signing back in. Nothing(so far)works.
Submission is a trust thing and doing some well known trust exercises will help ease the trainee into a state of mind where they are willing to be more submissive. You can also use hypnosis to elevate the perceived risk in trust exercises to elevate the rush of success.