As many others have noted here already, the Blacksmith pin code redeeming period seemingly ended earlier than expected.
Bungie store:
"The code for this offer must be claimed from the Bungie Rewards page by 08/31/19 11:59PM PST"
Clearly there was some sort of miscommunication, which is completely understandable. But, I have completed the Blacksmith pin in game and would like the ability to purchase. Thanks!
-
Hi there, Thanks for your report, I'll send you a message.