We continually have excess usage on our Jetpack. We have a prepaid plan. Every time we fill the plan the usage is gone within minutes. I used to think this was our kids. We only use the Jetpack when we go on vacation. Last weekend I filled the Jetpack. I immediately receive a bill via email and 11 minutes later received notification that our data was over 50% used. I contacted customer service who was very helpful. She refilled our data and watched as I navigated the internet to see how much data was being used. We used less than 5 meg over the 10 minutes she watched. She said if it happened again there was probably a problem with the Jetpack and they would need to send me a new one and for me to return the one I have. I shut the computer off. The next morning I logged back on and immediately received notification that we had used in excess of 50% of the data. I used the Jetpack for another 10-15 minutes before it disconnected me with saying all of our data was used. I contacted customer service again. The agent was very rude so I asked to speak with someone else. I spoke with Edgar who again was very rude. He offered to fill the data again for free but I told him there was a problem and I didn't simply want to have the data refilled. I wanted the problem fixed. He refused to do anything else and said I must be watching videos, which was completely untrue. He refused to let me speak with anyone else. What else can be done? There has to be a problem when the data disappears when nothing is connected or is gone within minutes of purchasing data.