CCC will not provide an administrative appeal with respect to issues which were subject to administrative review at the debtor's request as provided under another statute or regulation before:
(a) Effecting administrative offset;
(b) Referring the debt to private collection or credit reporting agencies;
(c) Referring the debt to the Office of Personnel Management (OPM) for salary offset against the current pay of a present or former Government employee; or
(d) Referring the debt to IRS for tax refund offset.