i bought a bike from argos in january which was under half price at £74.99. since then the bike has become faulty and argos have offered a replcement at the same price. i have looked at the bikes at this price nd none have anywhere near the spec as i have on the faulty bike. do i have any right to ask for a bike of the same spec at £40 dearer or must it take one of the bikes of lesser standard that are available.