Inefficient vehicle service.

I took in my vehicle (Opel Corsa Utility) for its 180000km service. That same morning I confirmed that my headlights are working (both main and parking lights).

Later the morning the service consultant called me to ask if they could replace my parking light, because it wasn't working. I objected at first and mentioned that I confirmed all was well that same morning . I gave them permission however, because I could not disprove their claim.

Now I get to my problem. It is the 4th of September. Yesterday afternoon both of my headlights are suddenly not working. Is this coincidence? I think not.

The reason I am not happy is that in December of 2016 I also had an issue with this same business. They did not properly service my car for the scheduled service and when I took it back 500km (2 weeks) later to replace the sail on the back of the bakkie and all of a sudden they wanted to replace my brake pads.

I am concerned that on two consecutive visits I have received bad service and that this might be due to the first complaint I lodged with the previous occasion.