Where can I enter the promo or discount code?

Once you are in the cart page (http://www.zoomin.com/Cart) ,  You will find an option to enter your coupon or discount code in a text box at the bottom left of the page. Simply type in the code, click on ‘Apply’ once done and your discounts will be calculated. You can verify the discounts in the Cart Summary on the same page. In case you enter the wrong promo code you will be shown an error message.