My brother bought the DVD at once

This is the sixth online purchase and the first time I purchased my favorite Gundam Thunder Front 4K DVD. I tried to find it in Japan before but couldn't find it. I didn't expect that I could buy a brand new one at a discounted price on the website. My colleagues also bought Aimer’s recent albums and selected albums, as well as Mizuki Nana’s recent albums. The only thing I want to complain about is that the website seems to have no control over the seller's shipment. Because I bought an album and the seller did not ship it for more than a month, and the website seems to have no control over the seller's shipment...