Adjustable dumbbells came eventually. They do explain how long it might it take, but that has nothing to with the fiasco that makes this company and its website.
First the product. It's not easy to adjust at all and absolutely wreaks of gasoline. Their response was that is inherent to the manufacturing process and being in a box for a month. Sure, if you're selling gasoline. The smell is intense even after letting it sit outside for 3 days. Also, the product that came looks a little different from their photos on website. The circles on the ends are black when they should be red; same for these parts that the weights attach to.
Now the website and company. My guess is this company was formed to take advantage of the pandemic because so many people are trying to exercise at home.
There are broken links everywhere. Youtube? Nope. Pinterest? Nope. Instagram? Yes, and the link in their bio goes to shop.com, not even back to their own website. Facebook? Yes, and the link to their website has a different domain... that is for sale at 98,888 USD.
There is no about us page and the terms of service indicate the website is operated by "Sdtru." There is no warranty. The manual/instructions don't even mention the company or brand and the most important section has multiple errors. See the photos.
Please save yourself the angst and avoid this website and company.