application has been rejected

I’m trying to register to elements affiliate program my I got rejected any suggestions

Applications that do not have a promotional method are automatically rejected. Please re-apply with your promotional method added.

Me too. I’ve applied 3 times, I don’t really understand what they are looking for. I have a website with good traffic, and I manage groups of over 30,000 members. So what exactly are they looking for on the application? I just don’t understand.