This only apples to badges and months subbed, I think the user is on about tiers.
Tiers can be fetched either via the twitch API or cached when they resub as documented under pub sub https://dev.twitch.tv/docs/v5/guides/PubSub/
The long and short of it is that if you want the tier ($4.99/$9.99/$24.99) you’ll have to make a number of API calls at bot boot, and then update via pubsub.