Scam :(
Unfortunately it looks like this site is a scam. I bought the Sovol SV08 Toolhead Adapter PCB listed on the site, for which I paid $44 with shipping.
The first red flag was that I received a confirmation of my order from some place called mallvic.com, not makerprintlabx.com as I would have expected. Secondly, when I looked at my bank statements, my card was charged to unisilk.shop for this payment. When I checked out unisilk.shop, it looks to be an unrelated site.
Anyway, hope springs eternal so I spent a month checking the tracking link I had received from mallvic.com. The tracking website itself was very odd, opening multiple popups every time I accessed it. But one day, it informed me that my package had been delivered. I sprinted downstairs to check my mailbox but of course, it was empty.
I contacted mallvic.com and makerprintlabx.com to complain. I received a reply from mallvic.com saying, "the tracking website shows your package has been delivered, what more do you want?" From makerprintlabx, I received nothing at all.