The Plans & Billing section on your account is where you will find your plan and billing information. You will also find all of your charges displayed at the bottom with invoices. detailing every charge!
You can view your plan information, switch, or cancel your subscription by clicking on the link titled "View plan" from the Current plan box. You can also view your credit balance and your credit balance's history by clicking on the link titled "History" from the Credit balance box. To view your billing information and add/update your credit card information, click on the link titled "Billing information" from the Next invoice box.
You can easily view your invoices' charge details by clicking on the desired invoice to view a description of every charge.
NOTE: Customers cannot delete their credit card info once it's added to the system. If you need to remove a credit card from your account, you'll have to contact your operator and they can get it done.