You're probably right. However I just kind of went with the flow of what I got from the buyer/ebay. The only time I got involved was when ebay said we are allowing the buyer to return the item. So alarm bells rang then.

Anyway, I have managed to get a call back from ebay this morning. The Agent was very understanding. He seems to think I have done everything right and he's now put the case on hold to ask the buyer for more information, but said he can't see an issue from my end and both parties should be covered.

Thanks for your help. Guess I'll see what happens!