plans and billing - add that payment will be processes during next update after account deletion (#403)

Author: crn4

public/docs-static/img/how-to-guides/pricing-overview.png

@@ -79,3 +79,6 @@ Your subscription cycle starts on the first day of your original subscription. I
 </Note>
 
 
+## Deleting an account
+
+If you [delete your account](https://docs.netbird.io/how-to/delete-account), the final charge for your usage will be processed during the next daily statistics update cycle at 2 AM UTC.