Can't we make a tutorial instead, where the player is guided how to rent 1 SPS for a week on his own with his initial credits.
After succeeding in this, the DAO could rent him 100 extra SPS for a week as a reward.
Additionally give the player a clear notification when his SPS rental ends. He now already knows the actions he needs to take.
The new player ideally is now empowered to do this stuff on his own.