Enum.ProductPurchaseDecision grant later moment?

Hello! I'm making a game where the player buys a developer product for a service but as a guarantee, we pay back if we couldn't fixi t. To do this without extra fees, we would like to use the Enum.ProductPurchaseDecision.NotProcessedYet thing. But how do you set it on a later time to Enum.ProductPurchaseDecision.PurchaseGranted?

Would it look like this: Enum.ProductPurchaseDecision.PurchaseGranted(purchaseId)?

Thanks for your help and time, Jonas