I think the salient point is that the buyer was charged to collect. I'm sure I'm not the only person in a majority that would consider that less than optimal.

If I felt the seller was being evasive, that would crank up my GOM syndrome, and I would likely let fly. Unless and until I was refunded. At which time I would still be grumpy, as it required me to front money I might not have, and the seller was apparently disclaiming responsibility.

To munchkihn, look into Ap My Business. The provided satchels (at a low cost) have a section for labels. And you pay and print online, so no postage paid labels. And definitely cheaper than using own packaging.