This important government directive outlines the process and legal standing of digital licenses:

Scroll entirely to the bottom of the payment and microtransaction panel.

It is possible "RTHD" is a typo or specific acronym for other terms:

Because these codes are distributed via independent developer channels—such as the Souz TM Telegram Group—they often expire after a specific number of global redemptions or game updates. MONEY1000 — Grants a mix of free GRT and RT currency.

: In financial markets, contract codes identify products and their expiration dates, though these are rarely referred to as "RTHD". How to Find Your Personal Code

Keep tabs on the official App Store and Android marketplaces where update logs frequently list current event rewards.

Every keystroke is tagged.

Most RTHD "codes" are executed via a script injector or found within the "Admin Command" consoles of specific games.

The diagnostic table in the RTHD manuals is extensive, but some codes appear more frequently than others. Here are a few examples that illustrate the kind of information these codes provide: