I have deleted any cards that were played after the claim.
I was West and rejected the claim. Declarer played ♦A, but then refused to continue and mentioned something like "an advanced player should see that the claim is good". I called the director. In table chat the director judged that the claim should be good. I objected in private chat and stated that BBO rules require the play to continue if a claim is not accepted. Eventually the director ruled that we shall play it out, and declarer made all remaining tricks.
I asked the director if he had allowed the the claim if it happened at a physical table, and he responded that most players he knows would get it right. Therefore he would allow the claim unless the declarer was very weak.
I doubt that the director did inspect the previously played tricks, where in trick 5 declarer in forth seat used the ♠A to win the trick instead of the 9.
Karl