Lombardo Sutherland & Myers, National Credit Adjusters

I have received emails from these people about a payday loan for $200 i took out in october, I paid $60 every two weeks for 2 1/2 months only to find out I was only paying INTEREST and the loan was automatically renewing every two weeks, and to pay it off, i had to pay another $260 in one lump sum, as well as mailing them a letter stating that i would be paying this amount? wtf? i put a stop payment on the ACH at my bank and notified the lender that they would not be getting any more money from me, they sent my account to collections and now I have been getting phone calls from a man claiming to be serving me a summons. Every time i try to contact one of these agencies all i can get is the same voicemail forwarding service. I live in Arkansas and this was an internet based loan. I have contacted the office of the AG here in Arkansas but have yet to get a reply. At this point I am ready to just give them their money and be done with this stupidity. What should I do? the lender was "Mac Development Group" based in Nevada.