Nope, 1 coupon per miner, for as many coupons as you have. They get the price right around 0.66 BTC/ea with shipping, which resets the price back to Batch #7 pricing! I thought for a moment that the price was down to 0.53 BTC/ea for certain quantities, but it turns out I just clicked on the shipping method before their webpage had updated the $$/BTC figure. When I tried placing my 0.53 BTC/ea order, the net price was recalculated "correctly" with the current spot price and the total ended up at 0.65 BTC/ea.

For reference I ran a bunch of quantities through their cart to get a feel for how shipping is managed, it's not entirely consistent, and YMMV (I'm in the USA), but here's what I found (these are after coupon prices):

Quantity   Extended   BTC/ea
2      1.391      0.6955
3      2.043      0.681
4      2.616      0.654
5      3.274      0.6548
6      3.95      0.6583333333
7      4.61      0.6585714286
8      5.22      0.6525
9      5.87      0.6522222222
10      6.524      0.6524
11      7.193      0.6539090909
12      7.761      0.64675
14      9.055      0.6467857143
16      10.43      0.651875
18      11.723   0.6512777778
20      13.037   0.65185
22      14.355   0.6525
42      27.394   0.6522380952

And so there we are. An average price of 0.657 BTC each. Not exactly what I wanted to see. So for anyone who bought Batch #7, you basically mined -for free- for the past 66 days compared to anyone buying an S3+ today. Or, to take another way, if you're buying a Batch #11, you're giving Bitmain 66 days of mining time -for free-. The least they could do is offer free "shipping" to their cloud service, since the miners are already pretty much there, or give new customers a voucher for 100 days of the hashrate they're purchasing, of cloud mining (i.e. "Buy 2 S3+ and get a voucher good for 100 days of 900 GH on Hashnest!").