Always research the reputation of any auto repair shop you are considering using to have your car serviced.
If you are a AAA member, you can find a list of approved shops on their website. https://canvas.instructure.com/eportfolios/2993287/Home/The_Power_of_Varta_The_Best_Site_to_Get_Varta_Batteries_and_The_Features_You_Need_to_Know