I need internet service in an RV for family that will be living there while on my property. They will be streaming tv & movies and computer usage. Verizon reps said I need to purchase an Orbic jetpack which I did, but have had nothing but problems and have already used up data within a few days. They tried just watching movies on an Iphone SE but it is too small for continuous viewing. Is casting to a tv from the phone a cheaper option that will not use as much data as the Orbic jetpack? I have spoken to the Verizon reps on the phone and also in the local store. They all give me different information regarding what I need.