The desk records the date the code first became active, the date it was last verified, and the date it expired (where the operator states one). For codes that are limited-time, the desk publishes the active window and notes that an unverified code outside that window is the reader's problem to check.
Code values depend on the operator's terms, and on regional eligibility that the desk cannot verify across all reader jurisdictions. The desk publishes the code and the tier; the reader applies them.
The desk updates the table with the new expiry date and notes the previous value as expired.
On /refer-code/. The desk keeps promo and referral coverage on separate routes because the operator's terms differ.