I don't know if people who just bought 841s are supposed to have the coupon or 841 and 821s.  Maybe try e-mailing Blokforge with your concern and see what they say...  All I know is I ordered both batches of 821s (I was one of the "lucky" ones  ) and a few of the 841s.  I got the Coupon code and I felt special.     I wish I could afford more 841s.  At the current price they are still price competitive with the recent S9 price drop.