Flipkart — Fake Product Provided, Rude and unhelpful staff

I ordered 3 bottles Olaplex No. 4 shampoo from flipkart on 26th May costing about Rs. 6945. I received the said order on 31st may. I had a previous bottle remaining which was in use therefore I did not open the product trusting the reputation of the website as well as believing in the authenticity of the product. On 21st June when I opened the first bottle of the delivered product, I realized that it was a fake product. The consistency of the shampoo was runny and the fragrance was flowery. The rest of the two bottles remain unopened. Having been a regular user of olaplex for a while now I can assure that the shampoo has a very thick consistency and extremely mild coconut fragrance. Upon realization I immediately contacted flipkart with its horrendous customer service. The junior executive upon enquiry transferred me to an extremely rude senior staff who was least interested in understanding my issue and understanding the fact that this is my hard earned money we are talking about. He insisted that I should have complained earlier when I tried to tell him that trusting the reputation of the site I didn’t realize that they are capable of sending a fake product. Further I informed them that the complaint will be lodged in your respectable forum he assured me that I should and he will not return my hard earned money. As an innocent customer who has rarely complained to any e-commerce site with regards to any product received it’s disheartening to see that my hard earned money is going to waste. I don’t even want a replacement because I don’t trust their products anymore. I just want my money back because it’s not a negligible amount. While the time maybe lapsed I was unaware of the authenticity of the product. I’m willing to submit all the 3 products for any kind of test to check the authenticity of the said product. I’m even willing to provide a bottle of the original and authentic shampoo for verification. Please help me out with my issue.