I had a similar 'fun' experience a few years back. Sold a desktop lab oven, and when the purchase was made something was off with the payment for shipping. Si

I had a similar 'fun' experience a few years back. Sold a desktop lab oven, and when the purchase was made something was off with the payment for shipping. Since I was a long-time buyer but inexperienced seller, I thought it was just an odd UI issue that would get sorted, but in the end, I got nothing for shipping, losing over $100. It turns out that there was some deeply hidden setting that allowed "Buyer can edit invoice", and the DEFAULT was set to "YES"!?! So, this permitted them to just eliminate the shipping cost. I'm still absolutely baffled why any honest person with a clue would ever even think to set such a default. Or why a manager would allow it. Support was utterly unhelpful other than surfacing the setting; acting like it was completely my fault. Instead of the flying cars we were promised, we just get another fundamentally disorganized and dishonest company.