JUST SO EVERYONE KNOWS - this company will not explain how they operate - they will charge your card even though you did not authorize it & will not explain that there is some kind of "subscription" when you sign up. I was under the impression that it was a one-time payment, get your however many boxes, & it's done. NOPE - they still charged me again EVEN THOUGH I NEVER UPDATED MY PAYMENT INFORMATION with my new expiration date & 3 digit code. They also will not give you a refund after they charge your card EVEN THOUGH YOU DID NOT AUTHORIZE IT. I will NEVER EVER do business this with company again & will tell anyone who listens not to either. DO NOT DO BUSINESS WITH THIS COMPANY. They are shady & you'll probably end up with charges that you didn't authorize either, just like I did.