Question about Synology DS920+

Hello, I ordered the Synology DS920+ (4 x 8Tb, Seagate Ironwolf) and unfortunately I received the Synology DS920+ (4 x 3Tb, WD Red Plus). (4 x 3Tb, WD Red Plus). When I noticed this error I immediately sent the item back. Will Digitec automatically send me back the correct item? Or will they refund my money and I will have to place a new order? Greetings