Myntra.com — by mistake I redeemed the insider point and cannot return the product from myntra

Address: 713212

I placed a this 1st order from myntra and delivered. There is some insider point collection feature by mistake i claimed my insider points and now i am unable to exchange the bluetooth. Because of this no option is available for exchange. I called the myntra customer care as well to resolve this issue but they are unable to resolve it even though i told them to take the collected points back. Thrre should always be some options it might happen to anybody new tries these.