Lily, not only would I be openin a dispute, I would also be looking at reporting them for fraud,

What a load of bovine excrement, how on earth is poor stock control fraud? It would only be fraud if they did not refund, something they will have to do if they do not send the product.

It is partly ebay's fault that high volume sellers have items listed that they don't have in stock. If they end the listing until new stock comes in it can lower their standing in best match searches, a sudden rush on a particular item combined with tardy delivery from a supplier can mean an unexpected delay.

A dishonest seller would have made excuses, claimed the item was in the mail and dragged it out until they had the stock and then said they were sorry it had gone missing and they were sending a replacement!