Mastery 7 Token Not Recieved!

I was playing Riven trying to earn my third lvl 7 mastery token. I was in my game and was 25/4. It for for sure I would get an S+. The game ended and I got an S+ but I received no mastery token. I checked and the hextech crafting was disabled. Please help me Riot and give me my well deserved mastery lvl 7 token so I can have that sweet, sweet, level 7 riven. Thanks for your time and I appreciate your support.