Thanks for replying Rebel11 and dx100uk, yes these are the main points. I have called them several times and their approach is 'the gas has been used so the bills are correct'. We don't use the gas that much and its small house not a 10 bed ancient house. Yes, the engineer turned off the gas and mentioned that the meter is still going.

Im lost for options now and this has resulted in seeking help online as E-On are just unbelievable. I live in a small 3 bed house from the past 4 years and around 1.5 - 2 years ago my boiler starts coming up with error (E34). In the past year alone i think E-On engineer has come to resolve the issue 5/7 times. In this time the gas bill has increased. My average bills are between 200-400 per bill and there is no way we are using this much and in fact we have started using less yet the bills have increased. There is no one at home during the day time and when we all get home we put the heating on and within 10/15 min the error comes up and the boiler/gas continues to run but there is no hot water nor heating in the house. To reset the message i have to turn off the boiler and turn it on again but there again it will work for 10/15 mins and the error will come up again. Sometimes i wont notice the error and realize this when im using the water. This would result to an hour of gas usage to the property but no hot water or heating. Today, when the engineer came out i told him the same problem i have told 101 time to engineers and the customer service dept. He then advised me that the boiler is missing a part!!!! How the hell can this get missed by the previous engineers. Based on this he turn off the gas supply as it wasnt safe and i agreed with him. Once he turned the gas off he checked the gas supply to the property and to his surprise he said the the meter is still going. What can i do get someone to look into this as E-On representative say that the gas entered to the property so i have to pay for it. Why should i pay for something that i didn't use and feel that there is a problem. Can anyone help??