Familiarize yourself with Telegram's terms of service and policies to ensure you understand what you did wrong. This will help you avoid making the same mistake in the future.
Telegram is quite active on Twitter (X) via the handle @telegram. Sometimes, public visibility can speed up a response. Send a polite tweet or a Direct Message explaining your situation. Avoid spamming them; a single, well-worded message with your channel details is more effective than dozens of repetitive posts. Submit a Request via the Web Form how can i recover my banned telegram channel