I lodged a complaint with fair trading a week or so ago, will let you know if i have a positive outcome. Fair trading could very well make mincemeat out of these guys, they hate shonky dealers with their pathetic guarantees. If you contact fair trading as well and there are multiples of us...
I too am a victim of Lifestyle Trader - Daytray would love to know if you have any luck, they flat out knocked back my refund request. They gave me some pokey excuse which had nothing to do with the guarantee!! I think a call to Fair Trading may be my first port of call.