There are several reasons a Hammies.com coupon code might not work:
- Code isn't valid for your items: Some promo codes are product-specific.
- Code required a certain cart value: Some promos are only valid once a certain amount is spent.
- Item is already on sale: Discount codes often don't stack with sale items.
- Code is expired: All coupons expire eventually.
If none of these apply, contact Hammies.com support for assistance.