Update: AITA for refusing to babysit my sisters kids for several weeks while she is on a ‘babymoon’ with her boyfriend

Hi guys, this is the link to the first post in case you haven’t read it: https://www.reddit.com/r/AITAH/comments/1ii4kot/aita_for_refusing_to_babysit_my_sisters_kids_for/

Last night, Jamie texted me. She seemed upset. Apparently, she had to cancel her”. babymoon” because I ”rudely denied” the “amazing opportunity” to watch her kids. However, not everything from the canceled trip was fully refunded, so she demanded that I compensate with the rest, and also pay for a fully funded trip to Disney for her, Daniel, and the brats. She also sent me links to several things, such as a pack of Japanese (expensive!) diapers, baby clothes, baby shoes (what baby needs mini asics that cost a bomb), and other stuff, totalling about 500 dollars. I didn’t text back, and blocked her. Later, Daniel called me. I didn’t pick up. At about midnight, Jamie showed up at my house and dropped Melanie, her 11 year old off. Now I’m conflicted. Should I call the police and get Jamie in trouble (and possibly get Melanie in trouble with Jamie) or should I go to her house and sort this out myself?

I really hope I don’t have to make any more updates