salesman was good but after care service is BAD, a...

salesman was good but after care service is BAD, also land rover assist came out to car about a month after i got it and removed things like tow hook and some clips and never put them back in fact 2 clips are now missing.have finally got car booked in to sort out problem and its 12.03 hrs and they still havent arrived to pick car up and give me courtesy car.They picked my car up on 18th april all though originally booked in 12th April.Its now 27th April and my car is still at Grange Barnet every day they tell me some thing different its a brand new car but they do not seem to know what they are doing, i think car needs to go back to Land Rover for them to sort.