Is there a minimum price for entrance to the special placement?

Please tell me if there is a minimum cost per click that you want to set, displayed in the special placement? Don't need answers type for each phrase separately considered.
Take the situation in a vacuum. There is a request X for which there is no competitors at all. If I, for example, will put the rate of 10 cents I will appear in the special placement or have a minimum threshold of entrance to this unit?
June 7th 19 at 14:55
1 answer
June 7th 19 at 14:57
officially the minimum bet is 30 cents.
But in practice this rarely happens

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