My experience with Dell is if it's in warranty and you are trying to get them to sort something out and they won't, then throw legislation at them, that moves them
Did it with my Dad's laptop years ago when it wasn't working right, as soon as I type Sale Of Goods Act into an e-mail withion 3 hours I had a supervisor calling me to say they were arranging for a brand new replacement to be delivered.

Did it with my Dad's laptop years ago when it wasn't working right, as soon as I type Sale Of Goods Act into an e-mail withion 3 hours I had a supervisor calling me to say they were arranging for a brand new replacement to be delivered.