If an order gets failed, it can be seen on the Magento admin panel itself.

To see the failed orders,

• Go to your Magento admin panel.
• On the top navigation bar, place cursor on Qoo10.
• When the menu appears, place the cursor on Manage Orders.
• The menu further expands and you need to click on View Failed Orders.
  
  
• On clicking it, you will be navigated to the page as shown below:
  
• Here on this page, you may see the Qoo10 Purchase order Id, Reference Number, Reason to Failed means reason of order getting failed, and the order Data.

To delete failed order(s),

• Select the order(s) that you want to delete by checking the corresponding boxes.
• Now click the Actions drop-down on the top right side of the page.
• When the menu appears, click Delete Order.
• Click the Submit button next to it.
  
• The selected order(s) will be deleted.

To cancel failed order(s),

• Select the order(s) that you want to cancel by checking the corresponding boxes.
• Now click the Actions drop-down on the top right side of the page.
• When the menu appears, click Cancel Order.
• Click the Submit button next to it.
  
• The selected order(s) will be cancelled.