Yes, it’s safe to use VPN with IPTV, in fact, it’s highly recommended to do so. As mentioned above, some Internet service providers don’t allow the IPTV connection, through using VPN you will overcome this issue.
If the link is not working, always check the link on different devices. If it works it means that there is something wrong on your end. When typing in your M3U link make sure you are not entering any space and you are not using your M3U link on other devices.
Contact us or create a support ticket if the link does not work on other devices after troubleshooting.