Cash Jar

I took a loan out in Dec 2009 from Cash Jar for 500 bucks. They lied firstly about when the money would be deposited. Once I got the money, my next paycheck they took out the wrong amount of money. They have took out 180 in later dec, jan the same amount. I called to complain they were rude, they told me that they recorded my previous conversation but would not let me hear and just told me I was wrong. I cancelled the checking account they were using to withdrawal my money. Changed my telephone number to keep the calls down. Today, july 18th 2011, I got a call saying that they were going to send a summons to Scotland County court's DA's office that if I didnt pay 1120 they would go ahead and charge me with check fraud, and fraudulent something else...I cannot remember. Then I told him that I didnt have that money he said what can you pay I stated that I have less then 100 bucks and on income assistance through the state and not working with two kids. He said well I may be able to get through to the attorney and let her know your hardships, etc. Can you pay your previous loan balance 525? I said no. The bottom line, I live in NorthCarolina, in Laurinburg. He said that they could take my driver's license for the next three years and suspend them since that is how I secured the loan. and before we settled anything he hung up the phone. I tried to trace the call but he called from an unknown number....what do I do? I mean can I really be charged with check fraud. I felt it was best to cancel my checking account when they started frivelously deducting money from my account. DId I end up screwing myself? This was an internet company that i dealt with, also there website says they are in FL.
the amount $500