It just takes a little digging is all

1. Look for your e-mail from ~Sept 11 titled \"ACTION REQUIRED: Please confirm your Digispark \"Kickstarter rewards\" order\"
2. Follow the unique link within (i.e.
http://digistump.com/ks_orders.php?id=XXXXXXX)
3. Right at the top of that page, you\'ll find your \"Order ID\" (a 24-digit hexadecimal number)
If you\'re clever, you\'ll notice you can trim it down to two steps -- the \"XXXXXXX\" part of the URL *is* your order ID! However, depending on your mail client, that may be harder to neatly extract than just following the link and copying off the page.