I ordered a record on Discogs that was advertised as Mint. My understanding of Mint is that it should have no flaws or defects, preferably but not necessarily sealed, unplayed. Record arrives, it is not sealed, and has a small but noticeable imperfection that causes 3-4 clicks when played. Not a scratch or from having been handled; this appears to be an imperfection from the pressing plant. My question is, is it acceptable practice for a seller to advertise such a record as being mint?