Your Endicia postage account has a limit of $500 at any given time. If you need a higher balance because you will be creating many labels one after the other, there are two possible solutions:
You can set up Endicia to auto-purchase postage whenever you drop below a certain level. To do so you will follow the steps provided in this Support Article. For your Endicia login credentials, please contact Ordoro Support at firstname.lastname@example.org.
You may apply directly with Endicia to have your $500 Postage Balance limit increased once you have used your account enough to establish a clear purchasing pattern. You can start this process by contacting Endicia at email@example.com.