Troubles with rewards in VoidWalker event

Hello. I got one trouble. First of all, I'm a hard fan of wraith voice lore and design. In VoidWalker event u got quest: win 3 games with different heroes. I won 2/3 and needed the last one. It was 17 minutes before voidwalker event will close. I started the game (19:43 +- (Moscow time)) and won this one, but, sadly, this game was played for 20 minutes (on of the reasons is that one guy in ranked left(ethernet mb, idk). And when I returned to the main menu-event was ended and I didn't get a reward. I kinda understand why, cause technically this won was after voidwalker event ended, but I'm hardly worrying about that I will never get this wraith voice, especially freely. I got a screen of this game and got a question: do I have even a chance to earn this reward? Cause without it, especially when I did 3 wins, playing would be kinda sad ☹️ Thanks for your attention, peace. Bych1k.