Abercrombie & Fitch, a well-known clothing retailer, offers a special birthday discount for customers who join their A&F Club. By signing up for this free membership program, members can enjoy a variety of perks, including a unique birthday discount during their birthday month. To take advantage of this offer, customers simply need to sign up for the A&F Club, provide their birthdate information, and keep an eye on their inbox for the birthday discount code.