Flipkart - Return not done

First I was gave the order for my airbuds when I was received the product there was one airbuds was working second was not working at one time both burds not working after that I called the cc they they will replace my I said ok again I gave the order and again same thing happened with me again they gave me not working useless product again cc they told me will provide your refund but till now I have not received my neither working product nor my money
This is the third class service you are giving your customer.

Almost you mentally harassed me last ** days...

Now I want my money also with the interest