Hi, if you did not receive an email yet you will not be able to get it anymore sadly, the emblem was rewarded to players emails whom had there accounts linked back in 2015 hope this helps :)
English
-
Had it linked already in week 1 of destiny, gues I got unlucky. Got all of the dlc e-mails etc. But never got the emblem e-mail. I recently changed my e-mail so I could verify again (sticked with the same adress). That did not work. Maybe it was more negative than positive.