Type in your MAC address in the MAC text field, then paste the M3U link in the URL text field.
Verify the reCAPTCHA and click on Send.
A message "1 URL added! Restart the App" will be displayed.
Restart the Smart IPTV app by pressing the Exit button on your remote.
Open the Smart IPTV app again, and you're done!
Please note that this is available for Samsung and LG Smart TVs only.
Also note that after the 7 days trial, you have to activate your Smart TV on their website, from the Activation page, by paying a one-time fee of €5.49, or else your M3U playlist will be removed from their server.