(1) In addition to any right otherwise to revoke an offer, the buyer may cancel a home solicitation sale until midnight of the third business day after the day on which the buyer signs an agreement or offer to purchase which complies with this part 4.
(2) Cancellation occurs when the buyer gives written notice of cancellation to the seller at the address stated in the agreement or offer to purchase.
(3) Notice of cancellation, if given by mail, is given when it is properly addressed with postage prepaid and deposited in a mailbox.
(4) Notice of cancellation given by the buyer need not take a particular form and is sufficient if it indicates by any form of written expression the intention of the buyer not to be bound by the home solicitation sale.