Many local businesses and museums offer special deals to support students in their studies. You may be eligible for these programs depending on local rules. Some states have an age requirement while others simply require proof of enrollment.
You can learn more about how to apply for an International Student Identification Card by clicking on this link and reading more about the international program: https://www.isic.org/
You can order your ISIC card with your school certificate and a photo via the following link https://isic.fr/commander-une-carte. The ISIC card will cost you 13 €. Enter OpenClassrooms in the School / University field.
Furthermore, you can review the article on how to download proof of your enrollment at OpenClassrooms. This can be generated after 14 days of signing up for the Premium Plus Path.