> For the complete documentation index, see [llms.txt](https://wiki.revolgc.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.revolgc.pro/en/getting-to-know-the-site/poleznoe.md).

# Useful

- [Wheel of Fortune](https://wiki.revolgc.pro/en/getting-to-know-the-site/poleznoe/koleso-fortuny.md)
- [Promo codes](https://wiki.revolgc.pro/en/getting-to-know-the-site/poleznoe/promokody.md)
- [Referral system](https://wiki.revolgc.pro/en/getting-to-know-the-site/poleznoe/referalnaya-sistema.md)
- [Telegram bot](https://wiki.revolgc.pro/en/getting-to-know-the-site/poleznoe/telegram-bot.md): You can activate the bot at the NPS \<Additional service> Assistant