Suggest me a service center for Volkswagen Polo Car

Guys i have a vw polo 1.2 tsi, last time when i went to Karsenz Guindy, those fraud people charged me 40,000 by breaking all unnecessary things. I had a fuse issue which can be solved by 10 Rs but they quoted me 5000, later i fixed it myself by changing the fuse for 7 rupees. I have good knowledge about cars still they try to cheat in every possible way. My car started having lots of issues after service also. It took 3 times to fix the issue. Now my car is perfectly fine, i just need to do annual general service. Please suggest a genuine car service center in and around chennai 🙏🏻