Report a bug for any type of device: https://bugs.telegram.org/

Submit press requests: @pressbot

Request spam deactivation: @spambot

Request a copy of your data: @gdprbot

Request account unban: login@stel.com

Report security issues: security@telegram.org
Contest: @contest, @contest_ru
Contest chats: @contests, @contests_ru

Claim an username: @username_bot

Report issues with Telegram Beta for MacOS: @macswift

Report login problems: reports@stel.com or https://telegram.org/support or https://twitter.com/smstelegram

Ask a question: Under Settings - Ask a question

Please keep in mind that even if we listed various support options, Telegram support is not the best in the world and maybe they don't read your messages at all.