I subscribed to a Twitch channel for ad-free viewing, but I'm still seeing ads. What could be the problem?

"Ad-free" refers to a situation or service where content is delivered or experienced without the inclusion of advertisements. There may be several reasons why you're still seeing ads on an ad-free Twitch channel. Since Twitch changed its policy, Prime members no longer have universal ad-free viewing. Twitch Prime no longer offers ad-free viewing across all channels.
Twitch says it removed universal ad-free viewing for Twitch Prime members to boost revenue and give content creators more opportunities. Twitch Prime users who were used to ad-free have complained about this change.

Some Twitch channels offer ad-free viewing for subscribers. Check if your channel's subscription includes ad-free viewing.