Automation cloud service deletion failed

I faced some issues with the orchestrator so decided to delete the default service and created a new one.
The deletion failed with following message

It says something went wrong on our end. Retry after some time.
I’m retrying from last week but still the same error.

How can I get it fixed. Cloud support says delete browser cache and retry, but that also didn’t worked.
I’m stuck because of this issue since last week.