4.—(1) Section 2(1) of the 2006 Act (removal of financial limits etc.) has no effect for the purposes of the application of section 82(2) of the 1974 Act (variation of agreements) where an agreement—
(a)varies or supplements an existing agreement; and
(b)would not, apart from section 82(2) of the 1974 Act, be treated as an agreement under which credit in the form of a cash loan is provided.
(2) Section 2(1) of the 2006 Act has no effect for the purposes of the application of section 82(2) of the 1974 Act where an exempt agreement varies or supplements an existing agreement.