UB Rakeback question (allready have one account)

[grouchie]

This post is mainly for a friend of mine.
He mainly plays at UB because he likes the software and speed but he created his account some time ago before Rakeback was the norm.

Now, I am looking into this because I feel he should at least be getting something out of it since he plays there so much.

I have heard that it is possible to open a second account at UB under an affaliate and they pretty much won't care.
I am basically asking if this is truely the case, or if there are any steps you have to take in order to do this properly.