Acceptable Quality Standard generic.
I bought a mechanical keyboard in a group-buy because in Europe they are not able to ship it. After waiting for so long, I discover a scratch over the case (which wasn't noticeable under natural light, but on artificial one – the lamp). They are not willing to offer me a replacement because the product was assembled. They are playing around generic Acceptable Quality Standard without offer a proper solution. I work in a hi tech company where we have a lot of enthusiastic, they didn't lost one customer, but many others.