I was contacted by a guy called Jake from MF Fuels some months ago, he said he got my number from the NCCA for which I am a member of ! Anyway he was plugging these fuel cards, saying I would save anywhere between 5 and 10 pence off a litre of desil at there designated bunkered sites, I have used them for a few months now but the saving was nowhere near the 5 or 10p per litre off, more like half to one penny, but to cap it all they have started charging me £1.50 per transaction per month ! what a joke, as you can imagine I've cut up the said discount fuel cards as I save more from my local asda and have reported them to the NCCA