Terrible service

I took my car in to get the drivers door window replaced. This was Thurs 26 Nov 2015. Had to enter all my details twice because they had issue with system. Then they told me once insurance approves then glass will come roughly in one or two days. Insurance approves I have to call and ask if my part has been ordered I'm told order will be placed. After numerous calls and promise of delivery on numerous occasions I get call Thurs 2 Dec 2015 my part is here. Drop of my car at 7 am for repairing only to get call at 10.30 that actually part that came is wrong part. My car is a Citroen DS 5 but my part was being ordered from Peugeot fourways not sure why because it is not longer a Citroen dealer. Incompetence in the highest degree now I have decided to cancel everything and start elsewhere l.