In the space of 24 hours, Carrefour Mobile and Auchan Télécom introduced discounts on their mobile packages through store loyalty cards. Carrefour Mobile, which uses the Orange network, made its return in store aisles, while Auchan Télécom operates with Bouygues Telecom. Both companies offer price reductions on their mobile packages for customers who hold a loyalty card from their respective stores. On Tuesday, October 6, 2026, Auchan Télécom responded quickly to Carrefour Mobile, which had launched its promotions the previous day, matching its prices exactly. Auchan Télécom offers a 2-euro monthly discount on bills for customers with a valid Waaoh! loyalty card who are subscribing for the first time. The card is free and available in stores, though it requires personal data, making it not entirely free. Marc Laurier, head of consumer marketing at Bouygues Telecom, described the discount as a "direct and immediate advantage" for loyal customers. For instance, the 20 Go package drops from 7.99 euros to 5.99 euros, and the 130 Go package goes from 10.99 euros to 8.99 euros. These are 4G offers with no contract, including unlimited calls and SMS. The high-end "Special Travel Series" 200 Go 5G package is priced at 11.99 euros instead of 13.99 euros and includes a 35 Go data allowance usable in over 160 destinations, including the European Union, the DOM (Overseas Departments), the United States, Canada, and several other countries. The entry-level package is quite affordable, with a 1-euro SIM card that can be picked up for free. Subscriptions are handled online at auchantelecom.fr, and the discount appears clearly on each bill. However, the promotion cannot be combined with other offers, and it ends if the customer cancels or switches to another plan. The smallest 1 Go package at 1.99 euros is not eligible for any discount. Earlier, on Monday, October 5, Carrefour Mobile returned with three no-commitment packages operated directly by Orange. The store currently offers 20 Go for 6.90 euros, 130 Go for 10.90 euros, and 300 Go for 14.90 euros, all without data allowances beyond Europe and the DOM. This is a disadvantage compared to Auchan Télécom's high-end package. The subscription is open to all, but only Carrefour Club members who link their card to their line receive 1, 2, or 3 euros per month. None of these packages includes 5G, even the largest 300 Go plan. On its website, Carrefour lists the prices as 5.90, 8.90, and 11.90 euros per month, while Auchan Télécom's Waaoh! packages are 9 cents more per tier. However, the way the discounts are applied differs. At Carrefour, the full price is paid, and the loyalty benefit is credited to the customer’s account to be used in stores or online, rather than being subtracted from the bill. At Auchan, the discount is directly applied to the mobile package. Ultimately, the choice depends on personal preferences. A discount is a discount, but customers who do not frequently shop at Carrefour might prefer the direct price reduction offered by Auchan Télécom. Carrefour still has advantages, including a 300 Go package and the reliable Orange network. The SIM card can be purchased in over 2,000 Carrefour stores or downloaded as an eSIM, though it costs 5 euros and 6 euros for shipping if ordered online. Auchan Télécom offers a cheaper 1-euro SIM card, including shipping. Auchan also provides faster 5G on its travel package, with more generous data allowances abroad. Now it's up to the customer to choose the best option for their needs.