When a new user certificate for the SMPE internet service retrieval is needed, it's possible to download it from the this link:
https://eapi.broadcom.com/receiveorder/getSignedCert
But it could be there is an issue with getting the new certificate and get this message:
This message appears:
ERR_INVALID_RESPONSE
To get a certificate, it's needed your Broadcom support userid is registered to a siteid with products licensed.
Common Components for z/OS 15.0
SMPE Retrieval Service
SMPE Order service
Check the siteid your Broadcom userid is registered for..
See if there are any valid Broadcom products contracted to this siteid.
If not, please register for a siteid with contracts attached.