I don't know. I look at it this way. I spent damn good money on that kit. You can't tell me that every once in awhile some sprues get messed up and they go into a big bin and eventually they get remelted. I can't believe that many people would take the time to email them saying their dog ate their propeller. There's such a thing as customer service. I for one think all these kits are way overpriced. Maybe they just lost my business. Maybe not. But good customer service sometimes decides thatWell … it's not as if it was their fault, of course. From their perspective, you're basically asking to buy a separate sprue from them. Though ¥3600 seems a bit much — I don't know how large that sprue is, but from Asuka you can get six or seven 1:35 scale Sherman sprues for that kind of money.