Dropping ours here for anyone checking the replies: KFKVE5 or ERZF7Q, either one works, just pick one. Redeem within 48 hours of signing up (app: Settings → Redeem token; web: Settings → General → Usage → Redeem invite code), and we each get 1B tokens. If it works, let me know which code you used!
Yours are used up and people keep asking, so happy to help as a backup here: KFKVE5 or ERZF7Q, either one works, just pick one. Redeem within 48 hours of signing up (app: Settings → Redeem token; web: Settings → General → Usage → Redeem invite code), and we each get 1B tokens. Let me know if it works and which code you used, and happy to help anyone stuck here too.