as a follow up, Halfords decided that a new entire bike was a possibility but the problem was the clarks brakes and would then have them again, they refused point blank to consider refunding money or changing for another model, but then I did decide to keep the bike as it was a present from my other half, as for going there again...er no im going to get a service plan from a LBS whose plan will include hydraulic brakes(Halfords service plan doesn't) I actually argued the fit for purpose law from 1979 law. I was told"no not going to happen" they refused to take responsibility. I think once this is done I will hope its sorted change what I want on the bike and put it down to a very expensive lesson but will make sure Everyone who thinks about buying fromhalfords I know in future hears about my experiences.
An earlier question about the insurers was this I needed a unbiased assessment of the bikes faults couldn't think of another way of doing it as other bike shops just put it down to the make and bad service.There were other reasons but don't really want to get into that here,
Anyway thank you all for your advice on this and be sure next time im looking for an upgrade will appreciate everyones advice and will take it on board when looking for another retailer.