Should you ever decide to make him a sub-account to your account then you would do the following. Log on to My Verizon . . . go to My Profile and you'll see a link that says "Assign Account Managers". In stead of pre-pay you could limit his use via "Usage Controls". This actually give you more control while limiting his use as much as you want and YOU have the flexibility of changing that use at any time! Just a thought for down the road.