How does the support system work that I belive I pay for!?

Hi, I´m from Sweden and dont realy understand how the support works, and what I´m paying for. Do the support cover ather plugins than Wpmu´s. I´m trying to set up a site whit education. I have looked at learnPress and Coursepress. Is so that this support could help me with eather one or is ít just Corursepress.
Thanks Niklas