Does Being on "Double Diamond" actually pay?

I was prompted to go onto Double Diamond site to play the slot machines for 5 minutes They are awarding you 3 coins for 5 minutes of play. I went on there last night for about 8 minutes and received nothing and this morning I was on for over 25 minutes playing continuously. But I have still to see the awards . Is there await period? or what is going on here. This is not the first time I lost ime being on a site. We need to straighten that out

Welcome to forum, I am new here, glad to see you join get-paid