I went on a one day trip out of town and when I got home and checked my prepaid data it had dropped from 62 percent available to 12 percent. I did not make any phone calls while I was away, just a few text messages. I used an app one time to get into the event that I was attending. I checked "recent calls" on my phone and it showed that I made four calls the first day I was traveling that I did not make. At least one was an international call. I try calling customer service but I cannot get through to a live person. Any help or advice will be greatly appreciated.