Seat and token-pack charges go through Stripe. There is no refund button on Settings → Billing. Write in Messenger with the invoice date and amount.
Find the charge, then write
This article does not promise a refund. Billing only lets you open the invoice and the Stripe portal.
Sign in as Owner or admin.
Open Settings → Billing → Invoices.
Open the receipt you mean, or select Manage billing to open Stripe.
Copy the invoice date and the amount.
Write in Messenger. Name the workspace, the invoice date, and whether the charge was seats or Buy 1000 tokens.
If Invoices says "No invoices yet." or "Checkout on Plan first.", there is no receipt to refund yet. Members can see Billing. They cannot open Manage billing.
Business is €49 per sender per month, or €39 annual per sender per month. The pack is €50 for 1000 tokens. Changing seats or canceling is a different article.