The offers are available on the site of the selling establishment, in the form of services specific to the establishment, which may be supplemented by options subject to the agreement of the establishment. The photos and videos describing the services of the various offers are not contractual. Article 2.2 Offers are available for online purchase on the site https://quatrieme-mur.com/. The consideration of this purchase by the institution requires full payment of the service. During the online purchase, the customer is redirected to a secure platform managed by MyBeezBox and its banking partner HomelocPay, the latter being a partner of MangoPay Arkéa Crédit Mutuel. Upon payment, the establishment certifies that it will provide a link to the customer to access these GTC.