Don't know if this will be of any help but I have been fighting Samsung about a washing machine that I bought 18 months ago with a two year warranty.
It developed it's fourth fault the week before Christmas phoned them they sent an Engineer who had to order a part etc, still hadn't seen him again by 3rd January so I phoned them and told them I wanted it replaced got the usual junk "we can't do that etc".
Yesterday (Saturday) decided that I had had enough so I wrote a letter stating the problems and sent it to Argos (bought the washing machine through them), Samsung, Trading Standards and Watchdog, and stated in the letter that I was sending it to Trading Standards and Watchdog and e-mailed this at about 10am.
I got a phone call from Samsung at 2pm who said that they had spoken to Argos and Argos have agreed to give me a replacement washing machine, we will wait and see, someone from Argos is phoning me on Monday.
I wonder if this is a coincidence or whether the threat of Watchdog or Trading Standards did the trick.
Battle number one hopefully won, the next one is my Bank Charges!