One you register on the site (not that the registration is absolutely free) you must go to your userpanel. On the right side bar you will see a "Redeem coupon" link.

Click it , apply the coupon code and you will get your ProxyNoid credits instantly.
After that you can submit your desired proxy site to the ProxyNoid's network

Quote Originally Posted by Greyhound View Post
How can I use those promo code?