The first thing you should always do before bidding is review the seller’s feedback. If they have any negative reviews, read them and find out why. One or two unhappy buyers isn’t a reason to avoid a seller altogether—some buyers will never be happy—but if several buyers are complaining, or if even a single buyer mentions any type of unscrupulous business practices, you should find another seller. Another thing to look at is how many reviews the seller has had. Being new to an auction site doesn’t automatically make a seller untrustworthy, but it’s a lot easier to trust someone who already has thousands of satisfied customers.