Free Evaluation of IBM Account Transition to Corporate Contracts

I am currently using the Watson API on Bluemix and have a question about it.

As a precondition, I changed my account, which was a free evaluation version until last month, to a corporate contract (passport advantage contract) in the middle of this month.
As a result, we started charging for the Watson API instance (NLC, R&R) that we created when it was a free evaluation version.
I have no plans to use them in the future, so I would like to delete them, but they do not appear on the Console screen and cannot be deleted.(We have also verified that the region and space are correct.)
Also, it is displayed on the usage dashboard, and the amount charged is increasing every day.
Also, even if you try to access it with the REST API, it is not authenticated and cannot be deleted.

What should I do in this case?
Is there anyone in the same situation?

Thank you for your support.