Hi,

I am trying to use the `/billing-profiles` endpoint from the Accounts API to retrieve billing profile and currency information. I am authenticated using OAuth2 client credentials, but I am consistently getting the following error:

Status Code: 503  
Message: TEMPORARILY_UNAVAILABLE

Can you please confirm the following:
- Whether this endpoint is currently available for my account.
- Whether any specific entitlements, permissions, or support plans are required to access this endpoint.

Here are my details:
- Account ID: 18f0ad11-5179-43b8-a0ec-52117645aef9