When attempting to add funds to a Stamps.com/USPS or One Balance account in ShipStation, an error occurs with the reason "Suspend".
This error is returned to ShipStation by the postage provider after ShipStation sends the add funds request. This occurs when there is an account-level issue with your connected postage provider. It may be due to an expired payment method on the account, a fraud alert on the account, or some other billing related issue (including an issue with the credit card attached to the account).
You must contact your postage provider to resolve the issue.
For a Stamps.com account, contact 866-634-4708 to discuss and resolve the issue.
For a ShipStation USPS One Balance account, contact ShipStation Support to discuss and resolve the issue.
If the issue is with the credit card attached to the account, you may need to then contact your financial institution to resolve the issue.