If within the period specified in section 68 the debtor or hirer under a cancellable agreement serves on—
a notice (a "notice of cancellation ") which, however expressed and whether or not conforming to the notice given under section 64(1), indicates the intention of the debtor or hirer to withdraw from the agreement, the notice shall operate—
In the case of a debtor-creditor-supplier agreement for restricted-use credit financing—
subsection (1) shall apply with the substitution of the following for paragraph (i)—
Except so far as is otherwise provided, references in this Act to the cancellation of an agreement or transaction do not include a case within subsection (2).
Except as otherwise provided by or under this Act, an agreement or transaction cancelled under subsection (1) shall be treated as if it had never been entered into.
Regulations may exclude linked transactions of the prescribed description from subsection (1)(i) or (ii).
Each of the following shall be deemed to be the agent of the creditor or owner for the purpose of receiving a notice of cancellation—
Whether or not it is actually received by him, a notice of cancellation sent to a person shall be deemed to be served on him—