I am sorry to say that I am not very clear about the issue you are having in your game!!
Are you saying you have purchased 50 Gold Bars for your game and you have not received them?
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No. In the bottom right hand of the screen as you picking your level it'll have gold bars. When you click on it for example it'll say download farm friends saga and receive 50 gold bars today and another 50 24 hours from now. I've done it with 2different games and received none