Article 493. The form of the contract of retail sale.
Unless otherwise provided by law or a retail sale contract, including the terms of the forms or other standard forms to which the buyer joins (article 428), the retail sale contract is considered to be concluded in proper form from the moment the seller issues a cash or sales receipt. or other document confirming payment for the goods. The buyer’s absence of these documents does not preclude him from invoking evidence in support of the conclusion of the contract and its conditions.
References to other articles of chapter 30. Purchase and sale: