To redeem a birthday discount, first, make sure you understand the terms and conditions, such as the expiration date and any exclusions. If you received a discount code via email, simply enter the code during the checkout process when making a purchase online. For in-store purchases, you may need to present the email with the discount code, a physical coupon, or your loyalty program membership card to the cashier. If your discount is part of a loyalty program, the discount may be automatically applied to your purchase during your birthday month when you use your loyalty account. Always read the instructions provided by the company to ensure a smooth redemption process.