Faulty vehicle delivered

Vehicle got delivered to me 23 days back.After third day of delivery,vehicle was not getting start.When contacted the break down team,they came and took the vehicle to workshop and return back after 3 days.Again after a week,vehicle was not getting start and again they took the vehicle and informed me that engine control unit has a problem.It has to be replaced and this has to come from MB Germany.It will take around 3-4 weeks.I drove hardly 200 KM and 13 days out of 23 days it is in work shop and it may take one more month to rectify the probelm.They have delivered the faulty vehicle to me.