changing light bulb

I keep servicing my cars Honda Fit and VW Passat at this station for two years. I always deal with Steve, he seems a honest guy. Everything seems fine until yesterday I brought my VW to replace my daytime running light Bulb. In the past I was only charged 10 buck for any bulb replacement. However, this time I was told by another guy Paul that the replacement of a bulb cause them one hour labor. That is 80 bucks. He explained to me that replacing the day time running light is a lot more work that before. Since they have earned my trust so I said it was OK to go ahead, though a little suspicious. However when I check the VW official side youtube guidance, the workload of changing daytime running light bulb is not what he described. Actually I do not see any difference from before. So I called back to find out and the charge was reduced to half hour 40 bucks plus parts. Since I have made the promise to go ahead so I do not want to make a scene. Obviously they take advantage of my trust, but I will not do business with them no more. That is stupid, for just 40 50 dollars and they lose a my two cars business for lifetime.