USACredit Stole My Money Internet

I was searching for a cash advance on the internet which I knew that I shouldnt do but I was in need of some fast cash to pay a bill.  I dont even remember anything coming up about this company and I never ever give my banking information out to anyone either on the phone or over the internet.  If I had not checked my bank account I would have never known that this was happening to me.  Of course, I didnt have that much money in my account and so of course I received an overdrawn account.  I immediately called the bank which has my account and they gave me the number of the company that did this.  I immediately called the company and they were no help to me at all they said that there was nothing that they could do to stop this transaction and that I had joined some kind of club (whatever) something that I didn't want in the first place.  Anyways, they were very nasty and rude to me and said that once you sign up there is nothing that can be done about it.  I tried to explain to them that I didnt give them authority to take any money out of my account and after sevral minutes of arguing with them I just hung up on them and called my bank back.  My bank is working to get this sorted out but now my account is overdrawn $149.95 and this is where my payroll goes each week so basically, I wouldnt of had this problem if they would have left my account alone.  I did not use my checking account number over the internet I was tryint to find a cash advance where you didn't have to give any of your information out and the reason was because this is what I was afraid was going to happen.  Any help that you can give me with this is greatly appreciated.

Thank you for your time.