Request flows (used when the store or subscription rule is Request only) do not change the subscription. They email your business address (Admin: User Subscription Request Cancel / Request Pause / Request Unpause, including the reason chosen), send the customer a confirmation (Subscription: Request Cancel / Request Pause / Request Unpause), and add an entry to the subscription's audit log. The customer sees "Your message was sent. We will get back to you shortly." You then act on the subscription page with Pause Auto Renewal, Cancel Subscription or Reactivate Auto Renewal. Address-change requests work the same way (Admin: User Subscription Change Address) and are applied via the subscription's Delivery Settings.