Extremely Poor After Sales Service

Left 8 messages and no one has responded got back to me this being 5 days later. Booked my vehicle in for a recall on the brakes and thought I might as well do the service while it was there. Did not hear from them the entire day while it was there and could not get hold of there service department to check whats going on as they were all busy. Arrived there at 5pm and was told that the car was sorted, upon looking at the invoice I saw the what I had booked the vehicle in for was not done. I questioned them and was told I will have to book the vehicle in again as they didn't have the part.... Surely being a recall and booking it in advance they would have made sure the parts were available... I then called to questing a invoice I required for chips they had fixed on the windscreen, after the 5th call I was able to get through to someone in the service department who very rudely told me she refuses to speak to me and she will get some to call me... guess what, still waiting....