Add payment policy to about page.

www/pages/about/main.md

@@ -15,3 +15,41 @@ Dzura is a work of [Project Kirisame](https://kirisame.com).
 
 This website does not collect any information beyond that used to implement user accounts and gameplay.
 Information is not provided to third parties except in serving the application to clients.
+
+
+## Payment Policy
+
+### Subscription
+
+Dzura's core monetization is a modest subscription for access to extra content, including additional reactions, custom games, and media.
+
+The exact benefits of the subscription may change over time as more content is added.
+
+
+### Reduced Period
+
+Subscriptions activated after the 14th day of the month will be provided at reduced price for the period,
+while subscriptions activated after the 21st day will be included with the next month's period at no additional cost.
+
+
+### Refunds
+
+Refunds will be automatically accepted up to 3 days after activation of subscription or start of the payment period if the subscription is canceled during that time.
+
+Refunds or free periods will also be provided at our discretion for any inconveniences to our users.
+
+
+### Cancellation
+
+Users may cancel their subscriptions at any time under the Subscription page of Account Management.
+
+Canceled subscriptions will remain active until the end of the period.
+
+A canceled subscription may be reinstated until the next payment period.
+
+If a user is not active for a full payment period, their subscription will be automatically canceled.
+
+
+### Customer Service
+
+**Contact:** service@dzura.com