Applying a code is easy, click on “Show coupon code". Copy it and let’s start saving.
Here is how to:
1. Go to zennioptical.com.
2. Select a category and a subcategory related to your search. You may also search with a key word.
3. When an array of various items appears as a result, select one by clicking on it.
4. On the next page is an image of your item. Read the details of the item. Click on “Order glasses”.
On the new page, fill in the prescription or decide the form your item will appear in and click on “Next”. Click on “Add to cart” after selecting the required options on the next page. When the next page appears, check the details of your cart, scroll down the page, you will notice a heading “Have a promo code”, click on “Apply” and press “Checkout”.