Adding a Credit Card to Easyship is essential when purchasing a label.
How to Add a Credit Card to Your Easyship Account
You can do this by selecting Account > Payment Method and selecting Add Payment Method. You will then be prompted to enter your Credit Card information.
Once you have added a default Credit Card, it is possible to add multiple additional payment methods. You can alternate your default card for by clicking on the Credit Card icon and selecting Primary payment for shipments