Agree, with the statement above, you simply have to let it play out. It happens to a lot of us when we first start selling. And yes, contacting the buyer is never a good idea, it lets them know you have no way to tell whether an item was delivered and is asking for trouble. Offering a refund, especially when you have so few sales transactions , will also not help you at all. You just have to keep selling items and any money from sales will be completely safe in your ebay balance, until cleared.