About my Green Card

I have been part of USAFIS for about 10 years.
Now, for the first time, I have been receiving calls from them telling me that I am a high profile and my application is very much likely to be approved.

This application of course, is to get a green card.

One question you may be asking is... why do you trust this people?
Well, believe it or not, my brother has a green card thank to them...

Anyway, this upgrade on my profile to get the green card costs 4000$.

Any comments?any suggestions?

Please?