How to turn on 20% discount for the first 3 reservations?

[Serour0]

Hi, 

When listing my place I was offered this option and declined it but have since changed my mind. How can I turn it back on?

I understand this question has been asked before but the solution doesnt seem to work for me. 

Please help. 

Thanks

[Kathleen260]

@Serour0 Did you ever figure it out? I have the same question.