Okla. Stat. tit. 24, § 135

Before the execution of a contract or agreement between the buyer and a credit services organization or before the receipt by the credit services organization of any money or other valuable consideration, whichever occurs first, the credit services organization shall provide the buyer with a statement, in writing, containing all the information required by Section 6 of this act. The credit services organization shall maintain on file for a period of two (2) years an exact copy of the statement, personally signed by the buyer, acknowledging receipt of a copy of the statement.