I booked my Vauxhall vehicle for an OBD scan because there was a prior diagnosis of a fault with the Glow Plug Relay. I advised them of the prior diagnosis at the time of booking. I was advised they would have to do another OBD scan but if the pre diagnosed fault was the only problem I wouldn't be charged for the scan. I was asked to leave the vehicle for the day to give them time. No problem with me as I wasn't using the vehicle at the time. At the end of the day, I got a phone call to advise me that "they have to do further checks so could I leave the vehicle till Monday". No problem again. However, over the next 4 WEEEKS with several phone calls I was told exactly the same thing. At the end of that 4 weeks, I went to collect my vehicle as I had got fed up with waiting. On collecting, the vehicle was parked well away from the workshop with a flat battery and no signs that the vehicle had even been in the workshop let alone having had any checks done. Nothing had been done. I would like to have given a zero rating but that isn't available. Really disappointing for a major dealer.