Kasmeer's mail
Go thru and verify its not in the mailbox for any of your characters.
I discovered that even though I didn’t open the mail on the first character I logged into after the update (my guadian), I could not see the mail on any other character after swapping. I had to get back on my guardian and accept the mail, then pass they key to the character I wanted to play on (my ele) via my bank.
Indeed thanks, I got the mail on an other character, which is weird since I didn’t play with the character till after i already got to the top of the tower with my main character
Same thing happened to me. My key is still sitting in the mail of a level 3 alt that I happened to log in with first after the update. Annoying that they couldn’t go into the account-wide mail.