If this is a system dependency that is not already installed on their servers, they are going to have to consider if it is worthy to install it an even then it's going to take a while until they actually install it, that is one of the reasons I also like to have an RStudio Server instance on a cloud computing service (e.g. AWS) so I can install any system dependency I want.
EDIT:
It turns out JAGS it is already installed, what is your issue installing NobBS? I just have installed it with simply install.packages("NobBS")
