I'm trying to get the achievements

I'm trying to get the achievements and I managed to get a 5 win streak in a public match team battle and it didn't count for some reason. I have reached 5 win streaks 2 times before but it didn't give the achievement either. I don't know what to do now, all I want is the platinum trophy.

I'm trying to get the achievements and I managed to get a 5 win streak in a public match team battle and it didn't count for some reason. I have reached 5 win streaks 2 times before but it didn't give the achievement either. I don't know what to do now, all I want is the platinum trophy.