This is a review for the 3rd shipment of a 6month subscription. I received NOTHING for the month of February. I have contacted the seller and they said they would ship something out and get me a tracking number.....and nothing. I see that my 4th order has supposedly shipped, but who knows if I’ll see that one as I’m still waiting for last months books. The shipping times for all these shipments has been abnormally long. And I live in a major city, not some town where it’s delivered by a mailman on a horse. None of the tracking numbers I get are ever valid. They go nowhere. Very dissatisfied. I want my books. Why is this so difficult?