Section 345.109 - Delivery of Copy of Agreement(a) A retail seller or credit card issuer shall deliver or mail a copy of the executed retail charge agreement to the retail buyer before the date on which the first payment under the agreement is due.(b) If a copy of the retail charge agreement is not retained by the retail seller, a notation in the seller's permanent record showing that the agreement was mailed and the date of mailing is presumptive proof of the mailing. Acts 1997, 75th Leg., ch. 1008, Sec. 1, eff. 9/1/1997.