Telegram Premium for 3/6/12 months.
Without logging into your account, premium is sent as a gift.
All you need is a username (you can find it in the settings in the "Username" field)
After payment, you need to send a unique 16-digit code in correspondence with the seller (on the oplata.info page)
The process usually takes 5-20 minutes

For a positive review you can get 2% cashback