They do, SymIQ
My personal view is that no Sym Employee should be asking technical questions about our products on this forum ...
I think it is reasonable to ask things such as 3rd party product /hardware questions, or 'environmental' questions as it is not always possible to recreate a big environment in-house, but questions about the product should be asked inside symantec only.
Martins answered the License part. EEBs are found in the NBU_versioninfo.txt file which is created by running /usr/openv/netbackup/bin/goodies/support/versioninfo -d on various NBU directories. You will see if any binaries have been replaced.