Advice for early decision acceptance?

I just got an early decision acceptance letter that I blindly applied for not knowing that I would be binded to that college. 1. I have not sent in my act scores yet but they already accepted so i guess it doesn't matter. 2. I do not want to go there (UMHB) and I want to SFASU or Texas State. I sent them an email October 4, 2012 asking them to change my early decision application to an early action application because early action is non binding and I got a response the next day and they told me "We do not have an Early Action application". So I sent them another email yesterday asking them to change my application to a normal application and I sent them an email today asking them to withdraw my application. So I am planning to call them tomorrow with there outrageously small business hours 8-5 and ask them. If I have to get out of there another way, would there be a penalty fee and how much and is there any other advice you could give me that I might need?