Hello, thanks for your replies. I use a PC and phone Wifi only, and yes, the wifi is password protected. I did speak to the helpdesk, but they could not tell my why this much data was used, only that it had been. They did refer me to the accounts specialist who did tell me of the options to 'refresh' my account, but this just involved spending more money to change to another more expensive plan. Can anyone please tell me what the different interfaces on this screenshot are? Regards, Alex. ... View more