To know more about your last payment, you need to select the link under the Last Payment column. After you select this link, you will see the details of the payment and the stage that the payment is in. There are four stages for a bill: 

• Processing 
• Paid 
• Canceled 
• Failed 

If the payment is still in the processing state, you may be able to cancel the payment if there is an issue. In the details, you can also view the reason for any failure in the payment flow.