Your right to a refund depends on the type of product you have purchased from PlayStation™Store:
PlayStation Store cancellation policy
You can cancel a digital content purchase within 14 days from the date of transaction, provided that you have not started downloading or streaming it.
Digital content that you have started downloading, streaming and in-game consumables that have been delivered, are not eligible for a refund unless the content is faulty.
You can cancel your purchase of a season pass within 14 days from the date of transaction, provided that you have not started downloading or streaming any digital content (e.g. game add-ons) included in the season pass.
If you purchase in-game consumables on the PlayStation™Store, they will be delivered when you next launch the game, until then you will have up to 14 days from the date of transaction to cancel. If you purchase in-game consumables during gameplay, they will be delivered immediately so you will not be able to cancel the purchase. In-game consumables are items such as virtual currencies (e.g. FIFA packs or GTA Cash Packs), boosts and other items that are depleted during gameplay.