10 gig Data quota reached within 3 days!!

Hi,<br> <br> we are allocated 10 gig data on our line per calendar month. to our surprise today - 04/06/2015, I had a pop-up warning that we have reached our quota. I have been using this package since October 2012 and this has happened only once before and towards the end of the month. In this case, 3 days! I called the help center and was informed that my computer was logged on since Sunday 31st of May until June the 4th at 09:30. I disputed this and asked for proof and the IP address of the computer that was logged on to no avail. Sibi Mathaba, the call center agent advised me that I should go and get a court order before any investigation can be done and that she will transfer me to the sales department for them to offer me the procedure of obtaining one. She also mentioned that there could be someone using my connection, which I have suspected for some time.<br> <br> It is Telkom's duty to show me the information to prove that I indeed am the one who was logged on. I don't download video or any big files that could consume this amount of data. It's mainly used for downloading emails and surfing. I am willing to have all the sites visited during this period displayed on an itemised account pls