The "Degraded" status of your Azure AI Search service indicates that the underlying search units are not healthy, which can lead to performance issues such as request timeouts. In this state, the Azure AI Search team is actively investigating the underlying issues, and dedicated services in this state are still chargeable based on the number of search units provisioned.
Since you are unable to scale your service due to the degraded state, it is recommended to wait for the Azure team to resolve the underlying issues. You may also consider reaching out to Azure support for assistance, especially since the service has been in this state for several days.
Keep in mind that while the service is likely operational, performance may be slow, and some requests might be dropped until the issue is resolved.