First sorry you got screwed. You are not first tech guy who got screwed over. While you should have something more concrete before you worked for them, this do

First sorry you got screwed. You are not first tech guy who got screwed over. While you should have something more concrete before you worked for them, this doesn't excuse them. They scammed you. For some reason, and we can discuss why this might be, tech work is treated as something we need to give away for free and after it, often we don't get a respect that we deserve. This happens in situations where tech guy is key to success, happens in companies where you are one of the employees and part of the team. The more you charge or ask for your services, the better you will be treated. Let that be lesson to all.