Okla. Stat. tit. 15 § 721
No person, firm, partnership, association or corporation, or agent or employee thereof, shall, in any manner, or by any means, offer for sale in this state, goods, wares, or merchandise, where the offer includes the voluntary and unsolicited sending of such goods, wares, or merchandise not actually ordered or requested by the recipient, either orally or in writing. The receipt of any such goods, wares, or merchandise shall for all purposes be deemed an unconditional gift to the recipient who may use or dispose of such goods, wares, or merchandise in any manner he sees fit without any obligation on his part to the sender. Provided, however, that where solicited goods, wares or merchandise are delivered to the wrong person by accident or by the mistake of the delivery or mail service, such delivery shall not constitute an offer subject to this act, and provided that the provisions of this act shall not apply to goods of equal or greater value and at no additional cost, substituted for goods ordered or solicited by the recipient.
If after any such receipt deemed to be an unconditional gift under this section, the sender continues to send bill statements or requests for payment with respect thereto, an action may be brought by the recipient to enjoin such conduct, in which action there may also be awarded reasonable attorneys' fees and costs to the prevailing party.
Okla. Stat. tit. 15, § 721