There is nothing wrong with giving your friends a discount or a freebie. It's done the world over. In NZ, it's called a "mate rate".
Then why need to cough out the discount again when others (public)come to know about it?
Why even bother to give a press conference over such 'private' matter like frds give frds a discount which other frds also don't get?
Why even bother?
Just state boldly so and so want to 'buy' influence onto me give me special price but I don't need to declare as I consider it to be pte hor!
So you other folks just don't say like I got brided, O.K?