Difference between deactivate and supend

If deactivated, they could revalidate their email and then be active again right?
I dont necessarily want them to be able to do this. I only want them to regain access after purchasing another subscription on Memberpress.

Also, when deactivated, would you still receive emails from the forum when other members are posting? And can you still reply? Again, I dont want them to be able to do this before resubscribing.