Premium Hextech chest witha key at level 5

From levels 2-4 you receive as he, garen and brand as champions and on level 5 you unlock the loot section and at that point you are supposed to get a purple Premium Hextech chest with key that contains a skin shard, orange essence and a ward skin shard. But i Am already level 7 (almost 8) and still havent received that chest is it bugged, changed or i don't receive it cause of the revel orbs that are out now? I already closed and opened the client 3 times and even switched to a different region and back and still nothing.
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