If you look again, you'll find that another forum member asked initially how it was held, it was your use of the phrase 'internal mounting colunms' rather than literally just showing a picture (which is worth 1000 words, rather than three) that intrigued me and hence, I asked for a picture, because I considered that the easiest way to decipher what you meant, how wrong I was.
To state that
concerning the negative feedback is also debatable, I would consider the same seller a fairly significant 'connection' and your explanation below perhaps explains why the buyer felt they needed to leave -ve feedback, as it is somewhat confusing....see belowThis product had no connection with the Pi-Stack in any case.
what is meant by
my understanding of that is that 'if the product he paid for arrives, he will be given a refund.' I would expect the opposite, as in, 'if the product does NOT arrive they would receive a full refund'????The customer received an immediate offer of a full refund if the item eventually arrived
Feedback may not represent the quantity sold(your feedback left for others does however



Anyway, thanks to tsedlmeyer for actually taking some pictures and providing what I asked for, such a pity the OP took the tone they did when we were simply asking genuine, reasonable questions.