Had an email from them saying they were upping my gas bill to 85 pound per month. This meant in total, my bill was over 170 per month with electric. I emailed customer service and had no response. When they called to collect my meter reading, I asked to be put through to their customer service team. After trying to find out why my bill had increased so much, he said it is an estimation and that it cant be changed for 6 months. I asked to be put through to the billing department, but he said he would email them. He then said that no one in customer service could help or give a proper explanation. We only use gas for our cooker. Everything else is electric in our house. Stay away from these people if you want to be able to afford your bills.