If you don't receive the code after 2 minutes:
: Telegram's automated systems frequently flag and ban virtual numbers if they are associated with bot-like behavior or spam. Account Recovery Issues telegram badu number best install
The best way to install Telegram is from the official sources (App Store, Google Play Store, or the official Telegram website) to ensure you're getting a secure and up-to-date version. If you don't receive the code after 2