That's all correct.
Since you subscribed before the September shipment you are at your third this week, which gives you "issues" 6 & 7 plus the reprinted first issue (volume 6).
The reprinted issue has the same image on the spine, it's only difference is the size of the black bar at the top... as it wouldn't line up with the rest. See my photo in post #108.
It's such an insignificant thing that might have bugged a couple of people, but most wouldn't notice or care. It could be why no freebies come with the third shipment as it has the reprint as a bonus item that adds to the weight of the package.