This is just speculation on my part, but... I think when QVC 'sell out' of items and then go to 'waitlist'...people on the 'waitlist' will get sent any returns. This is even more likely if the item is in 'clearance' as you can be fairly certain they will not be re-ordering that item just to sell it at a reduced price.
I have very occasionaly gone onto waitlist and if I do get the item it either comes without the original box or wrapping (as in a Lola Rose necklace) or is damaged (as in a gold chain TSV necklace)...as I say it is only speculaton on my part but I would bet good money that if you do get sent the item it will be because it is a return and you'll just have to hope it was sent back because the person didn't like it or it was the wrong size rather than used and damaged. Good luck!