Got the refund this morning BEFORE the physical delivery of the B3's (American Customs and UPS are screwing me violently in the arse). Might (doubtful) show up tomorrow.
Ordering in shipments of 2 units each and using DHL, all of my Bitmain orders have made it from HK to VA, USA in 3 days. Even before they gave the form option, you could always specify DHL in the order comments.
Orders of less than $1000 rarely get stopped by US customs. All of mine have been correctly labeled as BITCOIN ASIC COMPUTER for S1 and S3 shipments.
Just something to consider for the future if you're a US customer.
TLDR: Multiple small orders are less likely to get stopped by US customs. Use DHL.
I have an order with 10 S3's, in batch 4 by UPS, coming to stateside. I had made the order due to time pressure, since then I have made dozens of orders with 2 S3's, for the exact reason given by 9600. I will give an update to what happens to my orders.