Bug in promos cannot promote after winning

I was in my promo to Gold 2, and i got 1 free win as i previously lost my promos, however after winning the game, system didn't count the game why is that ? i should be Gold 2 but i am not 100% bug in the system please check it as this is really frustrating

Happen at 5:56am Australia Time Server: OCE
IGN: Myclonesucks