Refer a friend

I would like to refer some people in order to get some extra cash.
The issue that I realised is that when people click on your link, in the end when signing up they still need to put your name, how can this be done automatically: that people click on your link and that they dont need to put in your name, else the referral is useless.

Regards

Thanks Sebastian, I've seen the same thing. I'll check this further with our Billing and Web Developer experts.