That's one way to find out if Dee is really serious about getting entry into this VERY exclusive club, and living up to their rather high standards! Talk about dropped in at the deep end!
Then again, Dee has been desperately trying to get into the social scene for ages now, and the level of threat for talking about what she sees has been made quite clear in the previous part, so all the signs are good. Plus, she is clearly getting used to the idea of, and is growing to enjoy, having the power and control over her husband *smirk*
Yes, we do need some more context on the ultimate chastity device to properly put this part into perspective. I am left with the feeling that there is more going on here with the settings on the phone than was really made clear. Then again, it is clear from the way that the demonstration was run that all of the other women are quite familiar with what is going on, and what the various settings mean.
The reason for the punishment pegging did make me smile though, even if the poor and abused husband doesn't seem to be on board with this being a proper and sufficient reason. Foolish man, clearly it is an ample reason, since it's happening!