Deleting an app with cf delete shows the following error:
Deleting app the-app in org my-org / space my-space as [email protected]...
FAILED
Server error, status code: 502, error code: 10001, message: Service broker failed to delete service binding for instance my-service:
Service broker error: Internal Server Error
Swisscom status shows no errors, and there doesn't appear to be any additional info about what we should do.
Nothing you can do other than trying again later. But most likely you'll need assistance of their support because something unexpected is going wrong.