You should have disputed it when you had the chance regardless of the reputation of the retailer. I only suggest you to "Swap" Berserk as credit for something. Also I wont be dealing with dishonest principals of business policies. You can see I was a fan of Nippon Yasan, and now out of it. Simply because you are unable to provide the product, you should be refunded.
I wish you all the best, but something tells me you got too tired of it.