Okla. Stat. tit. 14A, § 14A-2-502: Buyer's right to cancel

(1) Except as provided in subsection (5), in addition to any

right otherwise to revoke an offer, the buyer has the right to

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.

(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 deposited in a mailbox properly addressed and postage prepaid.

(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.

(5) The buyer may not cancel a home solicitation sale if the

buyer requests the seller to provide goods or services without delay

because of an emergency; and

(a) the seller in good faith makes a substantial beginning

of performance of the contract before the buyer gives

notice of cancellation; and

(b) in the case of goods, the goods cannot be returned to

the seller in substantially as good condition as when

received by the buyer.

(6) If a home solicitation sale is also subject to the

provisions on debtor's right to rescind certain transactions

(Section 5-204), the buyer may proceed either under those provisions

or under this part.