PC One Mastercard fraud Ripoff Nationwide

I had recieved a call from an agent saying he was from PC One Mastercard, me being someone to try and build credit, I went along, I was hiped up. I went along with what the agent Brent Williams, had to say, then he transfered me to another agent to confirm, Kurtis Jackson. Brent told me that I was approved for a 2500.00 Mastercard that I would recieve in 7-10 days. They said the charge would be 349.00 for the onetime activation fee. He asked my banking account number, and me being a dumb*ss, I gave it to them, they are supposed to withdrawal the 349.00 on July 22, 2005. I didn't now anything about these kind of things until I tried looking this company up on google, and I saw a link to your site. What should I do? Today is July 18, 2005, I have until the 22nd. The day they said they would withdrawal the 349.00. Please someone contact me with advise.

Patrick
Hobe Sound, Florida
U.S.A.