500 Fast Cash threatens to take me to court and suspend my drivers lisence Internet

last year, I took out a $200 payday loan from this place. Every pay period from there on, they took out an additional $90 to extend the loan, since I could not pay the $360 owed (160 intrest). I finally couldnt afford to have $90 thrown away every payday anymore, so my only choice was to close out the bank account. Through out the year I have gotten a lot of harrasing phone calls from them. Today they called my work and left a message saying that "investigator wilson pls call back reguarding your ssn & id #" when I called back the 1-888 number, it was a company hire by them telling me that if I cannot pay the $560 by this friday (dont know where they got that amount from) then they were going to sue me in court for 5 times the amount taken out, and suspend my drivers lisence for bounceing a check over state lines (this was a payday loan i did on the internet) I argued with the guy for a minute, but decieded to give them the name and phone number for my lawyer. He wrote down the name and number and then hung up. I know payday loans are horriable, and no one should resort to that. But at the time, I had no choice. Does anyone have any advice for me?

Adidasgirl838
austin, Texas
U.S.A.