“QC”?? Why would “QC” be involved in stuffing a hard, sharp object into the ring surrounding the driver, causing multiple gouges, then levering it far enough and hard enough to cause the fiberglass PCB to delaminate?
That’s not normal, in any modern sense of the term “Quality Control”. And if it were “QC”, why did this unit pass & not get sent back for remanufacturing??
Besides, “QC” is a function of the MANUFACTURING process, not the purview of anyone in the reseller channel! Smacks of a blatant false statement to me… Rather than tip-toeing around it, let me say the word “LYING”, as in the person who would claim this has anything to do with “QC” is LYING to you.
Not trying to get into your business, but if you paid by PayPal or Credit Card, you could go to the payer to open a dispute / claim / whatever they call it where they take the money back from the seller’s account & replace it in yours.
Unfortunately, other than your completely-appropriate public “outing” of this mess, that’s about the only way you can be made whole if the seller refuses to take responsibility.
Meanwhile, I find it helpful (to my dignity, if not the process) to settle in to a long abusive dialog with them, using whatever words I deem appropriate, accusing, insulting, demeaning, everything I feel a need to “blow off steam” for, gets heaped on their Inbox, and if they try to ignore me I find others in their organization I can abuse (verbally ONLY, of course) until I find my way to the “big boss” who gets “both barrels” until he puts some kind of technological “block” on me, whereupon I use another E-mail address and start all over again. But that’s not for everybody, and it usually only makes me feel happy; although it is often successful ultimately. There is much value in blowing off all the accumulated steam you feel against some A-HOLE who desperately deserves it…
But that’s just me.