If you're enrolled in an auto-refilling plan, you'll be charged ~24 hours prior to your monthly auto-renewal. This is to ensure there are no issues with your payment method. Don't be surprised if you receive an invoice from your provider prior to actually receiving your coins!
Your payment is handled directly by Apple or Google Play -- Radish does not have access to your subscription or any payments you make. We are unable to make any changes to your subscription.
Your subscription will automatically renew each month at the same time, on the same day, unless you choose to cancel.