I'm sorry to hear that. It can be long process and it doesn't help that Google rarely ever tells you what the issue is. They just say there's an issue…if they say anything at all. What I've found with sites the dropped from things like the Exact Match Domain update, is that many of the sites aren't loosing rankings because they are doing something wrong (like a penalty or something), it's just that Google is no longer giving them the boost they were getting from the Exact Match Domain. Of course every situation is unique.

In those cases, the solution isn't fixing anything. You just have to building links, citations, and social shares to build up the authority of the site to make up for the boost Google took away.

Been working at it since January to try and change that. Reviewing all the content, adding new content, backing down keyword density – still haven't done enough . . 🙂