To use the credit, shop like you normally would and add your items to your cart. When you checkout you will see an option to apply your credit. Once you click 'Internal Credit' your price will change accordingly.
Just make sure that you are LOGGED in to your Dailysale account when placing the order.
Please click this link to login: https://www.dailysale.com/customer/account/login/
For your reference, please see the screenshot below:
You may locate this option on the lower left part of the check out page:
To help you find your credit, we will provide the steps with screenshots below for reference.
1. Go to www.dailysale.com
2. Login to the website
3. Once logged in, click on the My Account Link
4. From the My Account page, scroll down and look for the My Credit (link)
5. You will see the credit on the left part. See screenshot below for reference.