It's not possible to directly "activate" a banned Telegram account. Telegram bans accounts for violating their Terms of Service, and there's no official way to overturn a ban.
However, you can try these steps:
1. Review Telegram's Terms of Service
- Carefully read through Telegram's Terms of Service.
- Understand the reasons why your account might have been banned.
- If you believe the ban was a mistake, you can contact Telegram support to appeal the decision.
2. Contact Telegram Support
- Visit the Telegram Help Center.
- Submit a request explaining your situation.
- Be polite and provide any relevant information, such as your username or phone number.
3. Create a New Account
- If you're unable to recover your banned account, consider creating a new one.
- Use a different phone number and username.
- Ensure you follow Telegram's rules and guidelines to avoid future bans.
Remember, Telegram has a strict policy against account manipulation and spam. It's important to adhere to their guidelines to maintain a safe and enjoyable experience.