What a dreadful situation, I recently had a QC issue, but not with Rocks & Co.
I won a last item piece at auction, yet when my order was delivered it wasn't in the parcel nor listed on the invoice, I checked my confimation email where it was definitely listed then contacted CS asking why I'd neither received the item or had any explanation as to why. I was told the piece had failed QC so they didn't sent it, but I should have received an email informing me - I received no such email. I was miffed as not only did I have to contact them to find out why I'd not received my item but also becuase I'd bought it as a birthday present & was now left with only 3 days to source another gift.
I think as stated in an earlier reply to this post, that QC should be checked first before items are put up for sale, when buying goods in store faulty items are either not displayed, or if they are, they are clearly marked as faulty & priced accordingly. I hate the bother of returning faulty items, even more so if there's no more stock meaning you can't re-order.
Whilst having a moan, something that makes me cringe is when I've seen a presenter cast a piece of jewelry aside after showing it on screen & you can hear the clatter on the table, IMO it devalues what they are trying to sell, I often wonder when I've seen this occur if someone's going to be getting a piece that's perhaps been damaged by such action, if I saw a store assistant treat jewelry that way then I'd leave empty handed, you'd think they were selling cheap tat that is unworthy of care & attention.