Did you accidentally spill water on your phone or drop it in water? Happens to a lot of us. These days, water-resistant devices are more popular than ever,
measure every time the test iphones and ipads used data in some way and then compared it with the bill from at&t. they say they found that at&t systematically overstated data usage by 7% to 14%. sometimes as much as 300%. did you find overcharges on every single transaction? yes. every single one. reporter: did you ever find an instance where the discrepancy worked to the benefit of the customer? never. always an overcharge. never an undercharge. reporter: to test for those phantom charges the lawsuit says the engineer bought a new iphone, disabled everything that might trigger data usage, and let the phone sit for ten days, on but untouched. when the bill came in, there were charges for 35 different transactions. it s just like someone just coming in and stealing those minutes away from you. they re just robbing the time from your plan. reporter: at&t says the
an instance where the discrepancy worked to the benefit of the customer? never. always an overcharge, never an undercharge. reporter: to test for those phantom charges, the lawsuit says the engineer bought a new iphone, disabled everything that might trigger data usage and let the phone sit for ten days. on but untouched. when the bill came in, there were charges for 35 different transactions. it s just that someone coming in and stealing those minutes away from you. they re just robbing the time from your plan. reporter: at&t says the allegations are without merit and reflect a misunderstanding of how data is consumed and billed. for example, the company says some apps have software that runs in the background or is automatically updated which may use data that the consumer isn t aware of. the lawyers acknowledge that the extra money this may be costing each customer is small, perhaps $10 to $15 a month, but they