I was called my my place of employment and told that i was being fired over the phone and that I would need to turn my keys in. When I asked my manager if I would have my last check when I can in she told me no, and that it would be here friday. So I came into the store friday and asked for my check and it wasn't here. My manager said she put that I quit friday and it would take 72 hours for me to receive my last check. So i missed 3 days of work and I think this is illegal. am I right, what should I do?

In California you are supposed to be paid at the time you are terminated. If you quit without notice the employer has 72 hours. I would recommend that you contact your local labor board. It should be in the government section of the white pages.

It's called the Division of Labor Standards Enforcement in California.

http://www.dir.ca.gov/dlse/DistrictOffices.htm