The two official usernames
Both are listed on the official contacts page with an open button.
Opening the chat
On a phone, tapping the Telegram button on the contacts page hands the username to the Telegram app and opens the chat. If Telegram is not installed, the link opens a web page where you can install it first.
On a computer, the same link works with Telegram Desktop or with Telegram Web.
If you would rather search manually
Type the username with the @ exactly as written above. Telegram search shows similar names, so read the whole username before you tap it - not just the first few letters.
Copying the username safely
Each contact card has a copy control. Copying from the card avoids the small transcription mistakes that lead people into the wrong chat.
Telegram is a backup channel
Telegram is a normal way to reach ZEEFLIX Server Provider, and it is especially useful when WhatsApp is marked Delayed on the contacts page.