Fairly new to eBay and I have my first unpaid item. It is nearly four days past the item ended and still have not had payment and have sent another invoice plus a friendly message to pay up. What do I do now? I know you can open a case to get fees back, how do I do this or can I go for second chance offer and if so, how long to wait for the first buyer to respond. Your advice would be greatly appreciated. Thanks.