Heads up, AT&T users! Check your Citi Offers account because a sweet deal has reappeared: You can snag $40 back when you spend $65 or more on a qualifying AT&T wireless plan. Just make sure to pay directly with your eligible Citi card and that the offer is attached to it. The current iteration of this deal is valid until December 31, 2025.

Why should you care? Well, who doesn't love saving money on their phone bill? This is essentially a discount on your monthly service. According to Doctor of Credit, while the fine print says it's for new customers, it's often worked for existing customers too, which makes this a potentially easy win. Just be aware that AT&T Prepaid plans are excluded.

Keep in mind that this deal is targeted, so not everyone will have it. It also excludes in-store purchases or bundled services. So, log into your Citi account, find the "Citi Offers" section (it's usually buried somewhere!), and see if you're one of the lucky ones. If you are, activating the offer and paying your bill with the right card could save you a nice chunk of change.