Okla. Stat. tit. 14A, § 2-503
(2) The statement must
(b) read as follows: "If this agreement was solicited at your residence and you do not want the goods or services, you may cancel this agreement by mailing a notice to the seller. The notice must say that you do not want the goods or services and must be mailed before midnight of the third business day after you sign this agreement. The notice must be mailed to:
___________________________________________.
(Insert name and mailing address of seller)
If you cancel, the seller may keep all or part of your cash down payment not to exceed five percent (5%) of the cash price."
Laws 1969, HB 1001, c. 352, § 2-503, emerg. eff. July 1, 1969.