My statement says YUZOOL.COM
Don't worry, it's us!
We use yuzool.com (our umbrella domain) to sell our RapidWeaver addons (and other digital items) as you can see in the store here: https://store.yuzool.com/
You will receive your receipt from us for your purchase from firstname.lastname@example.org - but support should be directed to email@example.com
And if you paid by credit card, the statement will most likely say APPS BY YUZOOL.COM. PayPal will have the black Yuzool logo below (or purple version) and the billing@ email.