how can we use our licenses ?

we have been using installshield for a while now, but our organization has swiched email domains. it has been a long time since we mess with the whole licesning thing so we don't know our product and organization code.

my boss has the PLC , but he has the old email, and i've joined using the new email, and we have no idea how he can invite me to use it.

what's more, we are completly confused over the whole revernera/flexera divisoin here , as both seem to have their own portals.