[FIXED!] Magazine Subscriptions I did NOT want to subscribe

For some reason, even though I have specifically set my forms to NOT subscribe to anything, I get an "Order Confirmation" email everyday from Redbook and Good Housekeeping. I also keep getting bills from Hearst and now owe over $300 for things I did not intentionally subscribe to. How do I get this to stop happening? I've tried replying to the emails I get, but I just get an undeliverable error message back. I have no idea how I am going to pay the $300 I now owe. Please help me figure out how to stop this.