Keep your subscription up-to-date by adding new payment info to your account!
First things first, log in to your account on http://getstix.com/account. Once you're logged in, you'll land on your account summary page. Hit "manage subscriptions" on the left hand column.
All of your active subscription will pop up so select which subscription you'd like to update.
Once you select the subscription, your subscription summary page will open. Scroll to the bottom!
At the bottom left part of the page, you can up update your payment and billing info right there! Also, below the payment info is also where you can choose to cancel a subscription.
As always, feel free to check in with any questions: firstname.lastname@example.org