Myntra.com — myntra has shared my personal and order details with fraud

I have ordered a watch for my uncle and he has received a call on the name of mytra that he won a prize of 50 k. Fraud team has shared the order and address details to my uncle so he got convinced. On behalf on my uncle i have shared my card details to fraud people. Due to that i lost my 4172 amount. I have also raised an complain with myntra that how can they shared my personal details to fraud. Then they have not taken this seriously and dint nothing and asked me to raise an cyber crime report.
Incident date: 22-nov-2018
Order no.:[protected]-4728701
Myntra number : [protected]
Fraud no : [protected], [protected]