I Cant Get Keys In Hextech Crafting

Hi, it been a long time ago I got a hextech key. The last time was maybe 50 games ago and I need keys. I get many cheasts but never keys. It might be a bug or im just really unlucky. So if anyone knows anything about this I will be happy if you got an answer and how to fix this. Maybe its all that im just unlucky I dont know.
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