The 2 batches you received are from the same campaign , in each campaign we produce 5-7 batches , those 2 batches were manufactured with couple of days difference between tham .
We try to ship the batches with the longest shelf life at the time of the shipment , regardless to the batch number , probably, at the time of the first delivery, the batch with the longest shelf life that was released was the batch sent to you.
Have a good day