Boost lost due game freezing

Yesterday (08/12/2015) I was playing Warzone and for the first time I decided to use a boost. I finished the game and got a huge boost of points.
So I decided to use it again, BUT! My game froze and it restarted automatically, resulting in a loss of the game, but also of the boost!
It’s a huge boost and now it’s wasted for nothing and it’s not my fault.
Since there is no Halo5 (contact) support (Already tried Xbox.com support), I am trying to find a solution this way.