We were recently charged $159 bt ATT for an international call they alledged we made with our cell program with them. We use only Whatsap when making international calls. It was not us that made that call. We called them and asked for the phone number and country they alledged we called. They said they would not give that information out due to privacy concerns. They made us pay that amount and they refused to give us any information about the call. We recently spent almost 4 hours on the phone with them in an attempt to transfer our cell numbers to a different carrier. They would not give us the transfer authority. Thank goodness our new carrier (T-mobile) got around their attempts to keep us from leaving their company.