The correct thing to do is to email the seller and tell him you are not satisfied with the product and would like to return it for a refund. Most sellers will work with you. If after contacting the seller your problem is not resolved you than open a case with ebay that you the product is not satisfactory and you would like to return for a refund, Go to the seller first and give him a chance to make it right so it does not ruin his business.