In May I signed a contract for $29 a month which gave me $150 calls and mobile broadband of 1GB. After several months of being under my usage capacity (I was only using 350-600mb of data and around $120 of phone, I received a bill for $220 stating that I had used 11GB of data although data usage on my laptop was saying only 350mb had been used. I rang to complain about this and after extensive wait times I was told that I must have used it or someone else has used it and that I must be downloading movies and music which I had not. I live by myself and am the sole user of my laptop. I got an itemised account and noticed the download times were when I was at work and that the downloads of up to 2GB at a time were being taken of my usage and that the computer was online for up to 5 hours at a time. After repeatedly telling my complaint to many different people at vodafone they took off the excess charge for that month and they told me to get my computer checked which I did and as I suspected my computer was fine and no downloads had occurred. I called them to tell them to check that my bill was not being combined with somebody elses bill and they said it hadnt. I stopped using my computer for a couple of weeks as I was scared this would happen again. Guess what? It happened again. The next month I was charged $227 with another 11GB of downloads! I checked the times of these domnload and again they occurred when I was at work and during the 2 weeks I didnt use my computer. Again I called to complain and they took the excess charge off the bill and gave me 1GB for free to use to monitor what was happening. Of course this was all used up and not by me. I was sent another excessive bill and by this stage I had had enough. I was sick of being put on hold, it interfered with my work, it caused me a lot of stress and sleepless nights. I finally called them and to told them I would call the TIO and consumer affairs and that I wanted my contract cancelled free of charge! Finally they cancelled my contract free of charge. The next month I got another bill texted to my mobile saying I owed -$11.00! Due on 15 January! It took me 3 days to get through as I kept getting a message saying too busy and to call back. Ridiculous! When I did get through I told them how can I be billed for a credit that they owe me $11.00! The customer service guy said that this was a goodwill gesture but I would not be getting the money as they had to put my account in credit to cancel the contract! How is this a goodwill gesture after what they put me through! I now have prepaid mobile broadband with another provider and have been using my computer a lot more than when I was with vodafone and am still going nowhere near 1GB a month! I do not use vodafone any more and never will again.