Helldivers 2's Steam reviews have tanked since announcing the need to link Steam to PSN, but Arrowhead say it's Sony's fault and they're on players' side.
Go to your purchase history, find the purchase of Helldivers, click on it, click on I have a question about that transaction. Then write your refund request
Go to your purchase history, find the purchase of Helldivers, click on it, click on I have a question about that transaction. Then write your refund request