STAY AWAY! It has been over a month since I ordered 2, one month supply of K9 Advantix for my dogs. I initially received Advantage. I called and was sent a prepaid mailing label to return the wrong product and was told that they would overnight the correct product as soon as my return was received. It took a week for them to receive my return even though I'm only a couple hours drive away from them. They finally received my return but guess what? They didn't have any K9 Advantix in stock so they had to order it. It has now been a week since they ordered it and they still haven't received it. It has now been over a month since they took my money. I will never order from this company again. I will be contacting my bank for a refund.