Myntra.com — not able to return a product after insider points collected

Address: New Delhi, Delhi, 110059

I ordered a jacket from myntra .as it is the larger size than i expected.and by mistaken i collected the myntra insider point due to which i am not able to return back it .so i called the customer care .and they are also told me they cannot revert back the insider point and not able to help me in return process and jacket is worth of 1200 ₹ . Jacket is not fit to me and it is total waste for me.