I received an email from The Elder Scrolls Online Team no_reply@mailmw.custhelp.com about claiming a code for a tshirt discount but I'm not sure if it's legit as another email for a code redemption receipt for a crown crate came from The Elder Scrolls Online noreply@mail.elderscrollsonline.com?
I went to support at
https://help.elderscrollsonline.com/app/account/overview and I do have a code there to redeem for the tshirt discount but to redeem it I have to enter a Game Registration Code first.
I bought the base game ESO with Morrowind from Steam but I can't find view game cd key (assuming they're the same thing) anywhere in Steam and I didn't keep the original receipt email from Steam which supposedly would have contained the code either.
I did come across a forum message stating that ESO had a support page regarding this question specifically but when I visited the link it said that question was no longer there?