Cell C
Full signal but not full

I bought 2 samsung s4's on the contract. it was the best contract on paper but in real life they, the reception is crazy my wife is at home all day her phone has full signal but her phone is always off the data connection is a joke, i cant even send a whatsapp. we cant make calls from home or anything i resorted to buying another phone sim so we can b contacted at home. this is a joke