You should definitely give Customer Service a Live Chat session. They've helped me out on several occasions. I bought the wrong Destiny bundle for the wrong system (PS3 vs PS4) and they refunded me. I am in the US, but I don't think it should make a huge difference since you bought the item in the US account.
Also, despite how many NeoGaf members and gamers give Sony's Customer Service a bad rep, they've always been really courteous and hospitable towards me whether it's a defective PS3, wrong game bought on PSN, etc.
Good luck!
Oh, your post definitely gave me hope, thank you for that!
I will contact the costumer service now.