Question about referral income

I have some questions. 

My referral ghani0323 received many payments and has more than 80 posts already but still never credited to my balance 

My referral nzubi was paid but I was not 

My referral dongles he was paid as well but I am not the system shows success for nzubi and dongles never credited and ghani0323 in progress when i get paid for my effort ?