You need to contact the correct website. That website is UBBCentral.com
UBBCentral.com the site address which is listed all throughout the software you are seeking to obtain. It is the only site that licenses UBB.threads. It also the only site where you'd create a support ticket for licensing questions.
UBBDev.com is owned by a software enthusiast and managed by enthusiasts who supplies customized UBB.threads code. UBBDev does not license or distribute release versions of the UBB.threads package.