Telegram Faq and then deactivate it

You should download telegraph unofficial app and it is easy to delete there by one click

https://telegram.org/deactivate Bezi link keza selkhn tasgbalh +2519.... keza be telegram message code ylklhal esun code tasgbalh delete hone.

telegram.org then find delete account and then deactivate account

Go to Settings 👉 privacy and security 👉 Two factor authentication 👉 set password 👉 then logout 👉 then login and when it ask you for a password insert an incorrect password thrice and that will delete the account for good.