[Resolved]  Acer India — Discrepancy in information

Website:

acerservicecenters.com/index.php/acer-laptop-service-center-in-chennai-acer-laptop-repair-warranty-s

I purchased acer aspire e5-532-p1x5 laptop from chroma, delhi on 23 october 2015.
Since the day i purchased it, i had audio drive issues and wifi adapter issues.
I am studying in chennai. Few days back when windows 10 in my pc automatically got updated, i received a message - page default in non paged area. I went to the 'so called' acer care centre in adyar and they charged me rs.500 for installing windows 8.1 pirated version. The link i am attaching with the complaint shows that the centre is the warranty centre for acer. However it is not a warranty centre.
Despite of having my laptop under warranty i still had to pay for something which was my fault at all because the website (Link provided) shows a false information. It is not easy to go to anywhere at an unknown place and get your laptop repaired. You should respond to your customers properly instead of having an ignorant attitude. It becomes really difficult to handle such issues specially when the person is in an unknown city. I want my original windows 10 back free of cost. I request you to please see to it as being a student its really difficult to manage studies with such laptop issues. Also compare the online mail i received and the bill i paid. How can they charge me if it is an acer centre please kindly see to it.