Zara India — They did not return my 1 week old purchase and the people there are very rude

Address:

Zara oberoi mall Goregaon East, mumbai, India

I purchaser garment from oberoi mall Zara Goregaon East they did not take my return of one week old when I explained him the bill was lost due to them he checked cctv in that when he knows my purchse was a week old he should have accepted the return I left my garment there without the refund and he was too rude and impolite people to talk to I want to take action on it