HELP! I FEEL TRAPPED BY PRS!!!

DO NOT, I BEG YOU, DO NOT FALL FOR THE COLD CALLING THIS COMPANY DOES AND WHO WRANGLED ME INTO THINKING THIS WAS A GOOD DEAL! I AM NOT STUPID, BUT, I sure did get hoodwinked into this deal!! When I called to find out what i could do to get out of spending $39.90 A MONTH FOR THE NEXT 3 YEARS FOR A HANDFUL OF DUMB MAGAZINES... I WAS TOLD "TOO BAD, YOU SAID YOU WERE AWARE ON A QUOTE 'RECORDED' LINE THAT YOU WANTED THE MAGAZINES AND WE SEND YOU A READERS DIGEST SMALL WOODEN CARVING BOARD SAYING I WAS A GREAT READER OR SOMETHING LIKE THAT! I WANTED OUT OF THE DEAL AND THEY SAID THEY WOULD PURSUE ME BY CREDITORS AND RUIN MY GREAT CREDIT (WHICH IS 850 BTW). I FEEL LIKE A COMPLETE FOOL AND IF MY HUSBAND KNEW I DID THIS HE WOULD BE FURIOUS WITH ME! What is even worse is: They send me a statement every month and I send it back in asking them to just take it out of my Mastercard and don't bother me with their stupid notices that just make me mad all over again. I sure wish I could get out of this horrible racket they have going, but, do not know how! Someone please help me!