After switching my xfinity plan to Internet only my bill went down to $110 a month. Suddenly in July-September I recieved a message that we're exceeding 1TB of Internet which is ourragously high $213. Thank god softwares like Apple OBS and Windows Monitor data usage on every device. Our household is using an average of 600GB a month. A tech savy friend told me to call and monitor what decives are exceeding the 1TB Limit. The Xfinity xFi App had no information on its database concerning the devices connected just the 1TB overuse. I tried talking to customer serivice asking for more information on what devices are using so much data. The lady put me on hold and hung up. Almost 1500 GB bill in a 4 persom household with 6 devices Thats Insanity PLEASE HELP!