NCIC collect call service prepaid call service Longview Texas

My son was arrested and had to call me collect from a jail.  This company places the call and says you have to prepay a minimum of $20 to receive a collect call to a cell phone.  They say it will be $4.95 to set up the account, $2.95 for the first minute and $0.40 for each additional minute.  We had one 15 minute phone call.  When he called me a second time, the system made me put another $20 on the account to take the call.  I had two charges for $20 on my bank account.  Then two days later there is an added charge of $38.  That's 78 bucks for two fifteen minute calls and a third charge to which I never agreed.  Anyone needing to make a collect call is probably in dire straights and this company is not only profiteering off of their misfortune but charging credit cards without permission.