I sell quite a bit on eBay, mostly old clothes and childrens' clothes so nothing very expensive. I'm currently trying to sell something a bit more high value (a leather jacket) and have it listed with a buy it now price. I've had two offers at that price, but both from buyers with no reviews who have only joined eBay in the 24 hours before they bid. I haven't accepted either offer. Am I being over cautious or does this sound dodgy?