Mail or Telephone Order Merchandise Rule states you should be able to cancel your order and get a refund at any point before they shipped the product. If you want a refund, you should be able to cancel now, without having to wait until they missed their self imposed deadlines. Of course if you would rather have the product sometime in November, and you are worried you might not get it, then by all means wait, I see no reason yet to believe they will not ship at all.