The match was me as xin zhao (top) on summoners rift. Game finished got an S- but no token just they key. 
confused please help.
Friendly Ram2 votesthere has been times when i don't get a chest until after the next game or don't get the notification at all. did you check your profile to see if you had a chest and loot to see of you received one? if neither work a support ticket is a valid option for next attempt.
Wow its russ1 votesyup played a couple games srill ntn. i havent gotten a chest in a while either
Sp33d Zer01 votesYou don't get tokens for mastery 7 with s- only S
Wow its russ1 votesits 6 not 7
Mysticman891 votesAre you sure you don't already have 2 mastery 6 tokens (certain third party look ups indicate that you do).
Since theres no use for more than 2 mastery 6 tokens, it won't give you any more.
Wow its russ1 votesi checked but only the one
Mysticman891 votesPerhaps try quitting out of the client and relogging? Might just be a display error and the other token will show up that way. (Or even go to actually try crafting your mastery level 6, and it might realise you have 2 when you try to craft.)
Wow its russ1 votestried everything u said restarted client. tried to craft , but only the one. S is not easy to get hope someone can come fix this
Wow its russ1 votesstill need a bit of justice here?(for demacia)