If you can't see your Thane account, it might be because you're using the Telegram app on a different device from the one you originally set your account up on. The private key is securely stored on the device you used to create your account. When you log in with your Telegram account on a different device, your Thane account won't automatically appear.
Troubleshooting
To access your wallet from multiple devices, you need to import your recovery phrase to the new device.