Villa, stand your ground. If you notified the dealer of the problem within 30 days, then your consumer rights aren't effected. If they refuse to restore the vehicle to its advertised spec, your within your rights to hand back the keys and request the vehicle you ordered.
I can send you the email address of the person at SEAT who got mine sorted within a week of getting involved?
I can send you the email address of the person at SEAT who got mine sorted within a week of getting involved?