A week before a camping trip to Dorset, the fuel filter warning light came on. As the car was due a service, I tried booking it into regular Hyundai dealer. They couldn't do the work before my camping trip so I booked it into Halfords Autocentre in Southfields. They charge £285 for a Major Service, which includes 71 checks items, one of which is replacing the Fuel Filter. When I collected the car the Fuel Filter warning light still came on. I lifted the bonnet where I could see that the Fuel Filter housing had not been touched (as there was a later of undisturbed dirt on it). I mentioned this at reception. The man in reception told me that some cars have lifetime fuel filters and the mechanic must have thought mine was one of them. I would not accept this feeble excuse (LIE). I insisted they did the work that I had paid for. He said he would call me first thing the next day to arrange something. After I left he called my mobile and told be it had definitely been changed, and he had the old one (LIE). I said I'd come back and show him that the housing had been undisturbed so it was impossible it could have been changed. Although he accepted that it looked undisturbed he insisted that it had been changed and they needed to reset the computer to turn off the warning light (LIE). I phoned Halfords Autocentres Customer Service who booked my into a different Halfords Autocentre in Mitcham. They took one look at the Fuel Filter housing and confirmed it had not been touched. They have agreed to replace the fuel filter and flush it through. Thank you Stefan in Customer Service for booking me into Mitcham and thanks Mitcham for being impartial and fair. Assuming I am happy with it on collection, I intend to leave you an excellent review. Additionally, the oil in the engine looks completely black also. I am worried that they didn't change my oil or my oil filter but cannot prove anything without taking it to another garage to sort.