Sorry to say this but if you don't have a returns policy (minimum 14 days on ebay) uk law says they can return the goods for a full refund and you pick up at your expense, ready for this...............................WITHIN 3 MONTHS from Receipt. Under Distance selling regulations.
Hope this helps.
If you put it in your terms.................Distance Selling Regulations. Full refund within 14 Days if not happy with the product (Buyer pays return Costs) and returns goods in original condition at their risk.
You are covered.
The Law minimum is 7 days from Receipt but Ebay changed their rules last week.
That's a Free Cd you owe me Pete