I'm a little upset, normally when you pay for something you expect to receive it...
If there's something I'm missing please let me know.
@Matteobir12 Nothing you're missing... looking at the pinned post, it seems the only info we have is they're still being rolled in the sequence in which they received pre-orders:
https://community.stadia.com/t5/Stadia-General/Ordered-6th-of-june-yet-to-recieve-a-code/td-p/255