
It only manages the members it let in
You can connect a channel or group that already has people in it. Your existing members stay exactly as they are — the bot never audits or removes them. It only manages buyers who came in through a purchase, so your current community is never touched.

What happens when a payment fails
For recurring subscriptions, if a renewal charge fails the subscription goes past due and Stripe retries it automatically. If the retries also fail, access is revoked and the buyer is removed from Telegram — then re-approved the moment they pay again. One-off purchases have no renewal, so there is no failed-charge risk: access stays until you cancel it.

Buyers stay in the loop
Grouptizer notifies your buyers by email at every step — purchase confirmations, a trial about to end, failed payments, refunds — so you don't have to play support.

The bot doesn't read your messages
The bot is an admin only so it can approve and remove members. It runs with Telegram's privacy mode on and receives just two events — a join request, and changes to its own permissions. It never sees the posts in your channel or the conversations in your group.