Same here. Received an offer to renew early at a discount. Turned auto-renew off and took advantage of the offer. Somewhere between the renewal and downloading the 2015 version the auto renew must have defaulted back to On as I was billed again. Opened a ticket and received several robo responses. Posted here and got nowhere. Opened a dispute with PayPal and that generated a response to which BD claimed they can't refund the money during a dispute as my account is blocked. (Of course had they just refunded or even responded in a timely manner I wouldn't have had to go that route). So now they want me to either close the dispute or let it run it's course (PayPal suggests it takes 10 business days). I'm sticking with the dispute as I have much more faith that they will respond if PayPal is involved.
Absolute shame that such a good product has such lousy support.