Have been with Shell Energy since they were First Utility - who were great. Unfortunately Shell Energy are atrocious. Only gave one star as zero star option not available. Pay my bill monthly by cheque- I know cheques not popular,but suits me. Sent cheque off,all details correct,money drawn from my bank- then letters & emails saying bill not paid. Contacted customer services( which is horrendous nightmare trying to get through & when you do- best of luck understanding people on the other end) useless conversation,got nowhere & got shouted at by the guy on end of the phone yelling" when are you sending us proof you have paid this"- I only received email that morning. Sent bank statement with corresponding cheque stub number & amount & answered all relevant questions asked. Paid subsequent bill that had come in. Still receiving multiple emails about " outstanding debt" & how my credit rating could be affected by this as they pass details on to credit agencies. I submitted a complaint about this & their customer service agent. They got back in touch to say they had their " team" trying to track down the payment. Still waiting for a response. In the interim still getting emails about outstanding debt. Am taking this to the ombudsman & am leaving this company asap. DO NOT GO NEAR THIS COMPANY!!!!!