Once Premium has launched, cancel via:
User icon → Profile → Account → Subscriptions → Cancel subscription. You'll be redirected to the Stripe Customer Portal which manages your subscription.
No penalties — cancellation is free. Your subscription stays active until the end of the current billing period (end of month for monthly, end of year for annual).
Refund for partially used month: contact us within 14 days of purchase if you're not satisfied. We handle these personally — as per EU distance-selling rules.
Pause instead: you can also just turn off auto-renewal. The service stays active until the period ends and you can subscribe again anytime.