I would interpret any statement that "there is no way to get them removed" as simply a statement of their normal policy.

Underlings follow management policy.  So, yes, there probably is no way to get them removed through that underling.

Management sets policy, and thus has the ability, provided it is not illegal, to grant exceptions to its own policies.  While frowned upon by the CRAs, CR deletion based on payment of a debt is not illegal.

You need to get your request to a management official who has the authority to grant exceptions.