I have paid hundreds of dollars to be able to talk with my son who is incarcerated. I was told I had a credit line of $56.00 then the calls got cut off, so I started prepaying. My phone now has a block, which I am told by att&t that they do not know that much about this company but I beliv e they bill att& t in addition to collectiong large amounts of money, double billing, I call this theft and a scam. It needs to stop. i pay my phone bill.