This is a new one.

Somebody complaining because they WON a match.

Every match I go into, I fear that it may be one of those freak results where I get beaten despite being the stronger team. So you had to pay a win bonus, you would have to pay that if you won anyway. As for the goal difference, the same thing may happen to the guy you are neck and neck with.

They are the rules, they are the same for all of us.

Imagine if you had lost the game against a hugely inferior team, how much would you be complaining then?

You got 3 points. You got +3 on your goal difference. You had no injuries. My word you had it tough! (sarcasm alert)