Dont get champion mastery tokens

I have a problem im playing in normal games and ranked whit cait i have 6 lvl on her and i got s rank 3 times and no one of them i got a mastery shard whats the problem ? I playd other champions whit 5 lvl and 6 and it still didnt give me tokens for s ranks . Even if i get a +s i dont get a tokken whats the problem ?
Report as:
Offensive Spam Harassment Incorrect Board