It looks like they've stopped advertising their brands (I'm not saying they aren't still making Ultima, Four Star, Sonus, etc.) and are just operating under thelabzone dot com. That phone works.
This is rampant speculation on my part, fueled by some internet snooping, but Premium Finish Care had 2 partners. I'm guessing the change to TLZ was the product of one of the partners retiring, and I think the remaining partner has sold the company, although there are plenty of pictures of him on the website. Unfortunately time doesn't stand still and people get older and things change.
Honestly they never did much marketing for their branded products, once DavidB left the picture as the "brand manager" for Sonus and Ultima. But anyway, you can call down there and see what they tell you--make sure to post back.