You must first enter the complete url of the affiliate's page who sent you here. The web address will look something like this: 
https://YourAdvertisingCenter.com/AffiliateSite

Contact us & we'll send you the correct website address. 

Support@YourAdvertisingCenter.com

If you like, include any questions or comments and your website url.
We'll take a look and best advise.

We do this to protect our affiliates from losing out on a commission they're entitled to.  No one can order unless through an affiliate. You'll receive this same benefit should you wish to resell our service.