I purchaced a virgin phone from radio shack. I paid $50 for 1000 minutes at 5 cents a minute, but I'm getting charged 20 cents a minute.My name is Lori Evans and I purchaced this phone for my mother, Janie Martin.There is no way she used up 1000 minutes even at 60 cents a minute. Could we please get the minutes that we paid for at5 cents a minute. Thank you