Do not use this company!! 2017 we were told they could replace our old rusty above ground tank with a new underground tank, so we signed a 3 year contract. They then told us they could not replace the old tank as their machines could not get down the drive, but we were in contract so tough. December 2019 we phoned them when our tank was on 25% to say we needed a delivery, a couple of weeks later we were told they had failed to deliver due to the driver getting lost and not able to find us. Its was a few weeks before they tried again, so his meant Christmas with no heating or hot water, for us and our children, it wrecked Christmas! In March we were finally out of contract so decided to move supplier, we told Avanti we were moving so please do not deliver any more gas. They then tried to deliver twice more but we managed to stop the driver and phone Avanti each time. We moved to the new supplier with a new underground tank, we told Avanti to collect their old tank as it had only 12 months of service left and the new supplier didn't want it. Instead 6pm one night whilst we were having dinner they filled the now disconnected tank with gas!! To cut a long storey short, we finally got the tank emptied and taken away in July, 4 months of phone calls and hassle and 8 weeks later they still haven't credited our account with the gas and are trying to charge us for collecting the gas and old tank. Customer service is a complete nightmare, do not use this company!