Changing your Telegram username is a straightforward process that can be completed on the official Telegram web platform. This allows you to customize how your name is displayed to others in the app. Here's a step-by-step procedural instruction for changing your Telegram username.

Before you start, note that changing your Telegram name requires a verified mobile phone number. To change your username account, follow these steps:

1 Open the Telegram app on your mobile device and start a new chat or conversation. Depending on the version of the app you are using, these items might be located under an actions menu. Tap on this option.

2 Find the section or button labeled storage location, which often can be found under 'Settings' on some Telegram app versions. Tap this button to view available options and features.

3 Locate and tap 'Telegram authentication,' or alternatively look for a label like 'Telegram profile security.' Click on this option.

4 Tap on 'application settings.' If you do encounter different terms, look for options like, 'apps and services,' or a label that says 'Show all chats and other settings.'

5 Find the section labeled Telegram application code, which includes a 'name settings.' Tap this to start the renaming process. This may be labeled 'Telegram open API identifier.'

6 Tap 'renew telegram name' to restore or rename telegram name.

7 After selecting 'Recover,' a new message from the 'Support Bot' that Telegram assigns you, appears. This will ask if you are ready to start renaming procedure. Click yes once ready.

8 Select and confirm a new, available name suggestion from telegram, which should contain only letters and numbers. Please note that this will change your visible profile name across all im platforms.

9 Tap 'Confirm' to finalize the username renaming process.

10 To test if your username update worked, search for your new and verify the app displays your account using the new name.

Note: If you are not seeing your desired change, you may want to try restarting the Telegram app to see if that resolves the issue.