You can disable an account at any time, such as when the account holder doesn't make payment, etc. Accounts can be re-enabled as well.
PUT /v1/partners/accounts/:account_id/disable
PUT /v1/partners/accounts/242822/disable HTTP/1.1
Host: api.shipengine.com
API-Key: __PARTNER_API_KEY_HERE__A successful response is empty, with a status of 204.