for Miss Pots i think that is it,i finished everything in game that i can so coming soon is the same for me,as for Lucy i remember there were 3 events when she comes to your house where your choices matters.One is when she is ''attacked'' by a bee in the garden,the choice i went with is lie(having some fun),there was later and option to spy on her in bathroom(at your house) do that few times and she will offer that you pay her to watch that,if you agree it will be the same few times but then it will progress over time and will be asked about having a relationship with her(i went for real route instead of pay for extra services)Also choose the most expensive option with her,the more nude she is the faster the story goes..
As for Amy i didn't have a problem with 7 days punishment,after i completed punishment of her on last day there was H-scene
and after that you can catch her in Gym on certain day for addition scene(forgot the day).
Although she accepted to work for me using her to train others is locked until update.
Maybe try to go again for old save if you have it when you put her chastity panties on(and spy on her once during night after that)
or maybe try to simply load the game and forget about all other mission and do patrol,might catch her doing something that will trigger other stuff.
Wish i could help more.i have bunch of saves from my game which i dont mind sharing.
I just kinda randomly save stuff.Maybe in one of them you will find her final punishment,i deleted the game since i'm done but did save my saves but i'm not sure you will want that since I'm called Michael Shadow and i have no idea how to rename yourself to what you like.Really sry about that.I truly wish i could help.