In section 82 (variation of agreements), after subsection (6) insert—

“(6A)

If—

(a)

the earlier agreement is an agreement to which section 66A (right of withdrawal) applies, and

(b)

the modifying agreement is made within the period during which the debtor may give notice of withdrawal from the earlier agreement (see section 66A(2)),

then, whether or not the modifying agreement would, apart from this subsection, be an agreement to which section 66A applies, it shall be treated as such an agreement in respect of which notice may be given under subsection (2) of that section within the period referred to in paragraph (b) above.

(6B)

Except as provided for under subsection (6A) section 66A does not apply to a modifying agreement.”.