Most people pay for IPTV monthly but don't use it daily. Resellers know this. Some exploit it. A bad reseller will oversell their servers. They assume not everyone watches at once. Like
Why Your Playlist Keeps Disappearing (And How a British IPTV Reseller Prevents It)
You open your app. All your channels are gone. The playlist URL is dead. You have to request a new one. This happens when resellers use unstable URL generation. Some regenerate URLs week