Missing golden guns download code

I recently got a copy of borderlands 3 and it had a sticker on the wrap at the store that said it includes the golden guns but there is not a download code anywhere on/in the case. Where would i locate the code as i can see it for sale on the xbox store and im not really about spending another 15 bucks on a card for the store

The golden skin pack was a pre-order bonus

Weird. My copy had this sticker on it saying they come included with my copy

Thats very weird indeed

The pre order physical copy of super deluxe edition has its usual content + golden skin, there are only one code that include all of extra content printed on a slip of paper inside the case.

No slip like normal. Just a booklet that o scanned over like 50 times thinking maybe but it was just disclaimers