Those long agreement pages and their hidden meanings

I must really admin that I got a big shock today ( not of electricity but from an affiliate program. I signed up and it clearly said that it will pay me money for every free signup that is made from my referral link. Ok I was happy and included their ads in my one of the most popular site and within few days I reached $50 (which was enough to get paid) so I asked them to pay me now. WTH , now they added that 5% of those free members must have upgraded to paid membership. This 5% thingy is nowhere to be found in their Agreement page. So I am gonna sue them for this cheat and get my money anyhow. To add I would like to say that before one signing up for any affiliate program, must read agreement between the lines too and find out their “maybe” meanings in future to avoid any problem. And while I was writing this blog I found that a webmaster who joined by my referral link hasn’t been added to my account. I barked (well shouted) at them and they added him manually to my account. Now this is called a total local work @ssh01es !