Then I got home today and there was a package inside my door from Shenzhen. I actually thought to myself, "What the heck is this? I haven't ordered anything recently." But there was a replacement blade inside, and it works perfectly.
4 days, including the weekend, from the moment I emailed until the replacement blade arrived from China and was plugged in & hashing. Amazing. Amazing! Thank you CanaryInTheMine & friedcat. The ASICMiner legend grows.
How would they know you were a customer and your shipping address wasn't compromised? Canary is technically the customer and has the order history. He even requires signing mailing addresses/label numbers.

I just found it strange that he got no reply other than a new Cube at the doorstep...so you corroborate his story?