eBay

I sold an item for which the buyer has not paid, after sending an invoice, and a reminder a week later; how soon can I offer the item to a second-chance buyer?

I have just refunded the cost of purchase and postage to a buyer who said the goods were not received, 11 days after posting. To safeguard this in future, if I offer registered post and a buyer wants the item sent normal post, am I still liable if th...