Firestone Complete Auto Care review: Charged twice for labor

I scheduled to have a right low beam light replaced due it was out.. Only the low beam we out, high beam and the yellow light worked fine! I went to the location at 4221 E WT Harris Blvd Charlotte , NC 28215 on 1/3/24 My appointment was at 4:30. I normally get service at my dealership but had been in on 1/2/24 for an oil change/brakes and rotors and could not find any availability, so I scheduled with Firestone. Upon arrival, I was greeted, the guys were very nice, no issue with customer service at all. But I mentioned that I also wanted my left bulb changed just to have them both changed at one time. That was the perfect time for the techs to give me a heads up on the double labor, I would have declined. The service was done and my total was 134.88 for two bulbs, I thought it was steep but they laughed it off as if it was nothing THEN tried to say my coolant reservoir was leaking.. I then advised that I’m not a typical woman that doesn’t pay attention to my vehicle and I park in a garage and would have noticed.. I also mentioned I was at my dealership the prior day and my coolant reservoir was checked and there was no issue! I feel they tried to get extra money by fabricating! I went to the dealership today and had them show me that there was absolutely no leak and that Firestone was trying to get over on me! That’s horrible! Besides that I don’t understand why I was charged 46.20 Twice for labor and the job was done in less than 30 minutes. This has to to stop and I want to know is this proper procedure. I’ve never paid labor twice and I’ve had brakes done (front and back), it’s wild! I would like to note that no quote was provided to me and I was not told it Would be double labor for getting the other light bulb swapped while they were already under my hood. It’s robbery.