So I did some freelance work for a client. My work was used to build software, an application. I have been paid 40% of what is promised. It's been 5 months since I've been paid and now the software is about to go live for download. Client is ignoring emails and text messages. At this point I really think they're ducking me. So what actions can I take? Can I block the software from going live since a big part of it is stolen work? At what point can I reclaim the pieces I created? Any advice would be appreciated!!!