How about the pen marks she fought so aggressively, plus the glue and sloppy stitches that were neither shown nor mentioned? I agree the measurements were correct, but that was confusing since usually sellers and even Coach website in description of the modern version of the bag stick with measuring the strap drop which in this case is nearly the same. If strap length was the only issue, I wouldn't have fought it since as a seller of nearly 17 years myself I always think about their side of the story. As for authentication, I agree I rushed this time. My sister has always wanted this bag in light color, so I was preoccupied with the idea of getting a Christmas present for her just on time.
The seller does say "A great bag for all occasions with NO WEAR. The leather is beautiful. The registration number is 1402 300." Yes, I'd consider pen marks "wear and tear". But if i'd seen a strap like that I wouldn't have bought the bag in the first place so the issue of pen marks would be moot. Easier to NOT buy something with problems than to have to fight to get your money back after you get the item.
Anyway, let's leave this thread since we shouldn't be here in the first place.