Beware!! Online price checker is a rip off! Do not believe what British Gas Price Check tool advices you! I was a British Gas customer and my 12 month tariff was coming to an end. I switched from Collective Fix February 2017 tariff to HomeEnergy FreeTime Sat tariff earlier in 2017. I have used British Gas Tariff Check tool. It advised me that I will end up paying around £5 more a year by switching to HomeEnergy FreeTime Sat. Happy days! I do understand that it was an estimate and the final bill depends on my usage, but if the usage is the same I will end up paying £5 more a year. However, my bill from British Gas became significantly higher and not as advertised by the Tariff Check tool. For example, Jan 2017 I was on my old tariff and I have used 3024kw which was £103.41. In March 2017 on the new tariff I used 1996kw which was 107.48. The difference is astonishing as you can see. I have used one third less energy, but ended up paying more. How does that work out £5 more a year?